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539
https://www.gradesaver.com/textbooks/math/other-math/CLONE-547b8018-14a8-4d02-afd6-6bc35a0864ed/chapter-8-geometry-8-8-pythagorean-theorem-8-8-exercises-page-594/47
## Basic College Mathematics (10th Edition) The catcher is throwing the ball for $127.3$ ft from home plate to second plate. 1. Use the Pythagorean Theorem to solve for the length from second plate to home plate Let $L =$ the length from the two plates $L = \sqrt (90^{2} + 90^{2})$ $L = 127.27922...$ ft $L \approx 127.3$ ft
2021-02-25 05:22:26
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97
https://www.physicsforums.com/threads/could-this-be-simplified.956235/
Could this be simplified? I am sorry but i am not a mathematician Could this be simplified ? Attachments • main-qimg-a2a1217b577acb59952f518b9dd2be03.jpg 19.2 KB · Views: 489 sorry but the link isn't working fresh_42 Mentor ... or even one more step: $$\dfrac{\sqrt{x^2+y^2}}{y}+1=1+\sqrt{\left(\dfrac{x}{y}\right)^2+1}$$ which gives a nice form with only one variable expression ##z:=\dfrac{x}{y}##. PeroK Tom.G
2021-05-16 00:59:59
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147
http://mathhelpforum.com/trigonometry/17064-help-proving-double-angle-identities.html
2. $\sin 3x=\sin (2x+x)$ and use the formula $\sin(a+b)=\sin a\cos b+\sin b\cos a$ and $\sin 2x=2\sin x\cos x, \ \cos 2x=1-2\sin^2x$
2013-12-08 16:09:32
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68
https://www.envoyproxy.io/docs/envoy/v1.16.0/api-v2/config/trace/v2/datadog.proto
This extension may be referenced by the qualified name envoy.tracers.datadog Note This extension is intended to be robust against untrusted downstream traffic. It assumes that the upstream is trusted. { "collector_cluster": "...", "service_name": "..." } collector_cluster (string, REQUIRED) The cluster to use for submitting traces to the Datadog agent. service_name (string, REQUIRED) The name used for the service when traces are generated by envoy.
2022-05-16 19:36:01
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94
https://www.yaclass.in/p/mathematics-state-board/class-8/algebra-3091/factorization-17062/re-81bfe68e-6193-4d7c-9c24-c08b2cb8afa0
PUMPA - THE SMART LEARNING APP Helps you to prepare for any school test or exam Consider the expression $3{m}^{2}+\mathit{mn}+3\mathit{mn}+{n}^{2}$. $\underset{¯}{3{m}^{2}+\mathit{mn}}+\underset{¯}{3\mathit{mn}+{n}^{2}}$ $=m\left(3m+n\right)+n\left(3m+n\right)$ $=\left(3m+n\right)\left(m+n\right)$
2022-12-06 01:33:24
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134
http://www.gradesaver.com/textbooks/math/algebra/college-algebra-10th-edition/chapter-2-review-exercises-page-195/12
## College Algebra (10th Edition) $(x+1)^2+(y+2)^2=1$ RECALL: The standard form of a circle's equation is given as: $(x-h)^2+(y-k)^2=r^2$ where $r$ = radius and $(h, k)$ is the center. Thus, a circle with center at $(-1, -2)$ and $r=1$ has the equation: $[(x-(-1)]^2+[y-(-2)]^2=1^2 \\(x+1)^2+(y+2)^2=1$
2018-04-22 18:39:41
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129
https://socratic.org/questions/how-do-you-simplify-9-4-9-6
# How do you simplify 9^-4 / 9^-6? = ${9}^{-} \frac{4}{9} ^ - 6$ = ${9}^{- 4 - \left(- 6\right)}$ = ${9}^{2}$
2020-02-17 22:31:54
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57
https://plainmath.net/force-motion-and-energy/100539-what-would-increase-the-force
Jazlyn Durham 2022-12-30 What would increase the force of gravity between two objects? Expert Inversely proportional to square of distance, gravity will decrease. The Newton's law of gravitation governs this. Do you have a similar question?
2023-01-30 02:17:36
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56
http://www.ams.org/mathscinet-getitem?mr=1356164
MathSciNet bibliographic data MR1356164 55R35 (20J06 55P15) Martino, John; Priddy, Stewart Unstable homotopy classification of \$BG_p\sphat\$$BG_p\sphat$. Math. Proc. Cambridge Philos. Soc. 119 (1996), no. 1, 119–137. Article For users without a MathSciNet license , Relay Station allows linking from MR numbers in online mathematical literature directly to electronic journals and original articles. Subscribers receive the added value of full MathSciNet reviews.
2017-07-24 02:05:44
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122
https://learn.careers360.com/ncert/question-check-whether-the-given-fractions-are-equivalent-7-by-13-5-by-11/
Q # Check whether the given fractions are equivalent : (c) 7 /13, 5 / 11 6.(c) Check whether the given fractions are equivalent : (c)  $\frac{7}{13},\frac{5}{11}$ Views Multiply both numerator and denominator by $\frac{5}{7}$, we get : $\frac{7}{13}\times \frac{\frac{5}{7}}{\frac{5}{7}}\ =\ \frac{5}{\frac{65}{7}}\ \neq \ \frac{5}{11}$ Hence these two fractions are not the same. Exams Articles Questions
2020-01-27 11:38:25
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144
https://socratic.org/questions/a-store-buys-flowers-for-2-25-each-the-store-then-marks-up-the-price-of-each-flo#282622
#### Explanation: If we take $2.25 as 100% and they mark it up by 60% it means the selling price would be 160% Therefore, we divide$2.25 by 100 to get 1% then we multiply by 160 to get 160% which is the selling price. So, the selling price is \$3.60
2021-09-27 19:56:16
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76
https://socratic.org/questions/how-do-you-find-the-intercepts-for-y-2x-1
# How do you find the intercepts for y=2x-1? the answer is $x = \left(0.5 , 0\right) y = \left(- 1 , 0\right)$see graph below well you already know that the $y$ would be $- 1$ from the equation b/c of $y = m x + b$ and now all you have to do is graph to find $x$
2021-11-30 18:26:33
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95
https://quantumprogress.wordpress.com/2012/02/27/more-on-graphical-solutions-to-projectile-motion-problems/
In the animation, $\Delta v$ increases with time, and the average velocity is computed as the sum of $v_i$ and $\frac{\Delta v}{2}$. When this vector is scaled by the time ($\vec{\Delta r}=\vec{v}_{avg}t$), you get a displacement vector from the origin to the current location of the projectile.
2017-02-25 11:19:27
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77
http://openstudy.com/updates/5124e402e4b086b98ebdc125
Here's the question you clicked on: ## lirffej Group Title from a quartic equation with rational coefficients having 3-sq.root of 2 and 1+2 sq.root of 2 as roots..plzz..help one year ago one year ago • This Question is Open 1. Vinayak_G_P Since you have to roots, you can write the equation as $(x-(3-\sqrt{2}))*(x-(1+2\sqrt{2}) = 0$ Multiplying the terms $x^2 - x * (1+2\sqrt{2}) - x * (3-\sqrt{2}) - ((3-\sqrt{2})*(1+2\sqrt{2})) = 0$ Simplify the terms and you have your answer.
2014-10-20 23:01:43
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167
https://ko-kr.knowledgebase.renesas.com/English_Content/MCUMPU/Basic_Information/Is_there_something_wrong_when_amplitude_shown_is_approximately_1.5_V%3F
메인 콘텐츠로 건너뛰기 # Is there any problem that the oscillation amplitude is shown as approximately 1.5 V for the XIN-XOUT oscillation circuit? Last Updated:12/26/2017 ## Question: Is there any problem that the oscillation amplitude is shown as approximately 1.5 V for the XIN-XOUT oscillation circuit?
2018-01-19 07:32:30
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91
https://www.neetprep.com/question/71578-gas-filled-cylinder-its-temperature-increased--Kelvinscale-volume-reduced--percentage-gas-will-leak----/126-Physics--Kinetic-Theory-Gases/688-Kinetic-Theory-Gases
# NEET Physics Kinetic Theory of Gases Questions Solved A gas is filled in a cylinder, its temperature is increased by 20% on Kelvin scale and volume is reduced by 10%. How much percentage of the gas will leak out 1. 30% 2. 40% 3. 15% 4. 25% Difficulty Level: • 17% • 17% • 13% • 55% Crack NEET with Online Course - Free Trial (Offer Valid Till September 21, 2019)
2019-09-19 00:02:47
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112
https://community.thunkable.com/t/how-to-fix-the-row-going-out-of-the-row-if-the-width-too-high/249839
# How to fix the row going out of the row if the width too high Hi there, How to fix whatever the row width is too long,it just increase inside the row not going out. thanks. Hi, What is the width of your row? 320 1 Like Anyone? Hi, Since it’s 320px, I assume you make the row long by blocks - Like when level = 5 , set width to width+100px. So, to prevent the length of row to extend screen, Add a repeat until loop, and set condition to row.width = 320px / or any. This will stop extend of row
2021-02-27 15:46:34
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132
http://www.chegg.com/homework-help/questions-and-answers/let-p-denote-statement-july-14th-bastille-day-let-q-denote-statement-mississippi-river-wri-q914315
Symbolic Logic Let p denote the statement "July 14th is Bastille Day" and let q denote the statement "Mississippi is a river." Write out the following statements in proper English sentences. Do NOT use DeMorgan's Law in your translation (i.e. write translation with ONE negation not two):
2013-06-18 04:34:23
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66
https://tex.stackexchange.com/tags/labels/info
{labels} is about customizing the labels of {diagrams} and mathematical constructs like {matrices}. Please do not confuse questions about \label or similar commands with {labels}, use {cross-referencing} instead.
2022-06-27 05:51:23
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46
https://brilliant.org/problems/base-and-exponent-accuracy/
# Base and Exponent Accuracy! Algebra Level 2 What is the value of x such that: ${ 4 }^{ 2 }\quad -\quad { x }^{ x }\quad -\quad { x }^{ x }\quad \approx \quad |\quad 434.01\quad \times \quad { x }^{ x }\quad |$ ×
2017-01-22 10:27:07
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77
https://math.stackexchange.com/questions/2038801/simple-1st-order-pde
# Simple 1st order PDE [duplicate] Solve $u_x+u_y+u=e^{x+2y}$ with $u(x,0)=0$ I try to let $x'=x+y, y'=x-y$ and reduced to $2u_{x'}+u=e^{0.5(3x'-y)}$ How to proceed to the next step? Any other methods to solve? Thank you! • $$2u_{x'} + u = \exp \bigg( \frac{1}{2} (3x'-y) \bigg)$$ is an ODE in $x'$. You could use an integrating factor. Alternatively, you could solve the problem using the method of characteristics. – mattos Dec 1 '16 at 14:07
2020-01-22 18:23:06
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170
https://www.physicsforums.com/threads/solving-an-equation.551973/
Homework Help: Solving an equation 1. Nov 19, 2011 Ted123 Solve the equation $$x^4 - x^2 = k$$ where $k>0$. Am I being thick or how do I solve this for $x$? Factorising gives $$x^2(x^2-1)=k$$ but now where? 2. Nov 19, 2011 HallsofIvy Let $y= x^2$ and that becomes a quadratic function: $y^2- y= k$ or $y^2- y- k= 0$. Solve that for y, then solve $x^2= y$ for x.
2018-06-23 22:30:58
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148
https://aiuta.org/en/the-spherical-container-has-a-radius-of-21-cm-what-is-the-approximate-volume-of-the-container-use.244350.html
Mathematics # The spherical container has a radius of 21 cm. What is the approximate volume of the container? Use 3.14 to approximate pi and express your answer in hundredths #### Jayda 2 years ago V=(4/3)pir^3 V=(4/3)(3.14)(21^3) V=(4/3)(3.14)(9261) V=12348(3.14) V=38772.72 cm^3
2018-12-16 11:20:52
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103
https://brilliant.org/problems/another-easy-one/
# Another easy one Number Theory Level pending How many different pairs of positive integers (x, y) are solutions of the equation $$x^{2} +3y^{2} = 1997$$? × Problem Loading... Note Loading... Set Loading...
2017-03-28 23:33:03
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54
http://www.phpclasses.org/discuss/package/4990/thread/2/
No examples, but easy enough to figure out from the code. Subject: No examples, but easy enough to... Package rating comment 1 F Philip DeGeorge 2009-01-08 18:35:13 F Philip DeGeorge rated this package as follows: Utility: Sufficient Good Insufficient 1. No examples, but easy enough to... Reply Report abuse F Philip DeGeorge - 2009-01-08 18:35:13 No examples, but easy enough to figure out from the code. Cleanly written.
2015-03-29 12:28:15
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115
http://www.gradesaver.com/textbooks/math/algebra/intermediate-algebra-12th-edition/chapter-4-section-4-4-multiplying-polynomials-4-4-exercises-page-305/71
## Intermediate Algebra (12th Edition) $0.1x+0.63x-0.13$ Using $(a+b)(c+d)=ac+ad+bc+bd$ or the FOIL Method, the product of the binomials in the given expression, $(0.2x+1.3)(0.5x-0.1) ,$ is \begin{array}{l}\require{cancel} 0.2x(0.5x)+0.2x(-0.1)+1.3(0.5x)+1.3(-0.1) \\\\= 0.1x-0.02x+0.65x-0.13 \\\\= 0.1x+0.63x-0.13 .\end{array}
2018-01-19 23:55:09
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171
https://brilliant.org/discussions/thread/complex-exponent/
× # Complex exponent Can anyone tell me the value of i^i Note by Naman Kapoor 1 year, 10 months ago Sort by: i can be written as $${ e }^{ (i\frac { \pi }{ 2 } ) }$$ so this expression can be written as $${ e }^{ (i\frac { \pi }{ 2 } )i }$$ Now $${ i }^{ 2 }$$ =-1 so it is equal to $${ e }^{ \frac { -\pi }{ 2 } }$$. · 1 year, 10 months ago Thnxx buddy · 1 year, 9 months ago
2016-10-22 21:37:17
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153
https://www.coin-or.org/CppAD/Doc/ad.htm
The sections listed below describe the operations that are available to AD of Base objects. These objects are used to tape an AD of Base operation sequence . This operation sequence can be transferred to an ADFun object where it can be used to evaluate the corresponding function and derivative values. The Base requirements are provided by the CppAD package for the following base types: float, double, std::complex<float>, std::complex<double>. Otherwise, see base_require .
2018-01-19 05:38:49
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95
http://piping-designer.com/index.php/disciplines/mechanical/heating-ventilation-and-air-conditioning/1499-energy-efficiency-rating
# Energy Efficiency Rating Written by Jerry Ratzlaff on . Posted in HVAC Energy efficiency rating ( $$EER$$ ) measure the efficiency with which a product uses energy to function. It is calculated by dividing a product's BTU output by its wattage.
2018-04-19 21:27:30
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55
http://www.gradesaver.com/textbooks/math/calculus/calculus-10th-edition/chapter-2-differentiation-2-4-exercises-page-136/66
## Calculus 10th Edition $y'=\dfrac{9x^2+4}{5\sqrt[5]{(3x^3+4x)^4}}.$ The derivative evaluated at the point $(2, 2)$ is $\dfrac{1}{2}.$ $u=3x^3+4x$; $\dfrac{du}{dx}=9x^2+4$ $y=u^{\frac{1}{5}};\dfrac{dy}{du}=\dfrac{1}{5\sqrt[5]{u^4}}$ $\dfrac{dy}{dx}=\dfrac{dy}{du}\times\dfrac{du}{dx}=\dfrac{9x^2+4}{5\sqrt[5]{(3x^3+4x)^4}}.$ To evaluate the derivative, plug in $x=2\rightarrow\dfrac{9(2)^2+4}{5\sqrt[5]{(3(2)^3+4(2))^4}}=\dfrac{1}{2}$ A graphing utility was used to verify this result.
2017-07-28 00:52:15
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241
http://mathhelpforum.com/advanced-algebra/102239-group-problem-please-help.html
HINT: $\displaystyle a^{m_1}=a^{m_2}$ for some $\displaystyle m_1 \neq m_2 \in \mathbb{N}$, because we are in a finite group.
2018-04-26 02:52:16
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49
https://homework.zookal.com/questions-and-answers/find-a-trend-for-each-environmental-categories-and-then-find-502552467
2. Economics 3. find a trend for each environmental categories and then find... # Question: find a trend for each environmental categories and then find... ###### Question details find a trend for each environmental categories and then find a specific opportunity related to the trend. 1.social change 2. economics 3. technology 4. competition 5. Regulatory.
2021-03-02 05:05:25
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73
https://brilliant.org/problems/thats-not-an-identity/
That's not an Identity! Number Theory Level 2 If $$x$$ and $$y$$ are positive integers, and satisfy $(x+y)!=x!+y!$ Find $$x$$ and $$y$$. Enter $$x+y$$ as your answer. Notation: $$!$$ is the factorial notation. For example, $$8! = 1\times2\times3\times\cdots\times8$$. ×
2016-10-25 06:40:19
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92
http://openstudy.com/updates/510292ede4b0ad57a56273e2
## canyouhelpmewiththis Group Title Is this right? one year ago one year ago 1. canyouhelpmewiththis This is the problem... 2. canyouhelpmewiththis 3. canyouhelpmewiththis |dw:1359123384510:dw| wait, this is my answer. 4. UnkleRhaukus you can only combine like terms , $\sqrt[3]x~~\&~~\sqrt[4]x$ are not like terms 5. zordoloom
2014-10-22 22:25:03
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113
http://www.chim.lu/ech0255.php
Search: # Iodine in equilibrium between the pure phase and the gaseous phase Two test tubes contain different quantities of iodine. → Theory
2020-07-02 22:14:47
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32
https://socratic.org/questions/how-do-i-graph-f-x-x-5x-2-on-a-ti-83
# How do I solve f(x)=x/(5x+2) on a TI-83? Nov 3, 2015 Why use a calculator? #### Explanation: The function will equal zero when the numerator equals zero. Answer: x = 0 hope that helped
2020-07-07 00:03:48
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58
https://www.voiceonline.com/16-seabus-sailing-cancellations-for-friday/
# 16 SeaBus sailing cancellations for Friday TRANSLINK announced on Thursday that due to union job action it is expecting the cancellation of 16 SeaBus sailings on Friday: • The 6:17 am, 6:47 am, 4:10 pm, 6:47 pm, 7:17 pm, 7:47 pm, 8:17 pm, and 8:47 pm sailings from Lonsdale Quay will be cancelled • The 6:31 am, 7 am, 4:25 pm, 7:01 pm, 7:31 pm, 8:01 pm, 8:31 pm, 9:01 pm sailings from Waterfront will be cancelled. This site uses Akismet to reduce spam. Learn how your comment data is processed.
2019-11-22 15:54:44
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173
https://proofwiki.org/wiki/Definition:Trace_(Linear_Algebra)/Matrix
# Definition:Trace (Linear Algebra)/Matrix ## Definition Let $A = \sqbrk a_n$ be a square matrix of order $n$. The trace of $A$ is: $\ds \map \tr A = \sum_{i \mathop = 1}^n a_{ii}$ ### Using Einstein Summation Convention The trace of $A$, using the Einstein summation convention, is: $\map \tr A = a_{ii}$ ## Also see • Results about traces of matrices can be found here.
2021-07-24 23:24:06
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117
http://mathhelpforum.com/calculus/147264-proving-inequality.html
1. Proving an Inequality I was thinking of using convex function properties to prove the following inequality but couldn't. I'm not sure what else should I use. $\displaystyle 1-(a/b)<ln(b/a)<(b/a) -1$ given that $\displaystyle 0<a<b$ 2. Originally Posted by GIPC $\displaystyle 1-(a/b)<ln(b/a)<(b/a) -1$ given that $\displaystyle 0<a<b$ Use the mean value theorem to prove Napier's inequality: $\displaystyle \frac{1}{b}\le\frac{\log(b)-\log(a)}{b-a}\le\frac{1}{a}$.
2018-06-23 02:56:25
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149
https://www.folkstalk.com/2022/07/latex-sum-two-lines-subscript-with-code-examples.html
# Latex Sum Two Lines Subscript With Code Examples Latex Sum Two Lines Subscript With Code Examples Hello everyone, In this post, we will examine how to solve the Latex Sum Two Lines Subscript problem using the computer language. $$\sum_{\substack{i=0 \\ i\neq j}}^n i^2$$ The Latex Sum Two Lines Subscript issue was overcome by employing a variety of different examples.
2022-08-19 15:09:45
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93
https://socratic.org/questions/how-do-you-rationalize-the-denominator-and-simplify-2sqrt5-3sqrt2
# How do you rationalize the denominator and simplify (-2sqrt5)/( 3sqrt2)? Apr 9, 2017 $- \frac{\sqrt{10}}{3}$ #### Explanation: Multiply the surd conjugate to get rid of $\sqrt{2}$ . $\frac{- 2 \sqrt{5}}{3 \sqrt{2}} \cdot \frac{\sqrt{2}}{\sqrt{2}}$ $= \frac{- 2 \sqrt{10}}{3 \cdot 2}$ $= \frac{- 2 \sqrt{10}}{6}$ $- \frac{2}{6}$ can be simplified to $- \frac{1}{3}$ $= - \frac{\sqrt{10}}{3}$
2019-11-22 02:54:51
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164
http://crypto.stackexchange.com/tags/semantic-security/new
# Tag Info For perfect secrecy: $$number\_ of\_keys >= number\_of\_cipher >= number\_of\_plaintext$$ According to Shannon's perfect secrecy theorem: let, $$number\_ of\_keys = number\_of\_cipher = number\_of\_plaintext$$ then we have perfect secrecy if and only if: each key is used with same probability, and for each (plain,cipher) pair there is unique ...
2014-03-09 00:32:02
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87
https://www.math.princeton.edu/events/upper-bounds-lagrangian-spectral-norm-2018-12-10t203000
Upper bounds on the Lagrangian spectral norm - Egor Shelukhin, University of Montreal IAS - Simonyi Hall Seminar Room SH-101 We discuss recent developments in establishing uniform bounds on the spectral norm and related invariants in the absolute and relative settings. In particular, we describe new progress on a conjecture of Viterbo asserting such bounds for exact deformations of the zero section in unit cotangent disk bundles. This talk is partially based on joint work with Asaf Kislev.
2019-02-19 19:05:42
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103
http://crypto.stackexchange.com/tags/dictionary-attack/hot?filter=year
# Tag Info Suppose the server did not include $v$ in the computation of $B$. In such case the following events have happened: The server has sent a salt value $s$ to the client. We might assume it is authentic (because it is easy for the fake server to get it from the real server). The client re-calculates its long term private key $x$ such that $v = g^x$. The client ...
2014-04-21 14:48:13
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93
https://piping-designer.com/index.php/properties/electrodynamics/2773-lightening-strike-distance
# Lightning Strike Distance on . Posted in Electromagnetism ## Lightning Strike Distance Formula $$\large{ d = a \; t }$$ ### Where: Units English Metric $$\large{ d }$$ = lightning strike distance $$\large{mi}$$ $$\large{km}$$ $$\large{ a }$$ = speed of sound $$\large{\frac{ft}{sec}}$$ $$\large{\frac{m}{s}}$$ $$\large{ t }$$ = elapsed time between seeing the flash and hearing thunder $$sec$$ $$s$$
2023-04-01 20:06:49
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120
https://math.stackexchange.com/questions/1643222/find-the-percent-of-boys-and-girls
# Find the percent of boys and girls I have a basic school academic question which despite of trying very hard I was unable to find a solution - Average score of girls is an exam is $67$ and that of boys is $62$. Find the percentage of girls and boys? I think the question is incomplete - cause average is nothing but addition of each student marks divided by total number of student - and I was never able to find the solution - is my understanding correct - does an answer exists?
2019-10-19 07:58:50
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101
https://www.encyclopediaofmath.org/index.php/Lie_group,_derived
# Lie group, derived The commutator subgroup of a Lie group. For any Lie group $G$ its derived Lie group $[G,G]$ is a normal (not necessarily closed) Lie subgroup of $G$. The corresponding ideal of the Lie algebra $\mathfrak g$ of the group $G$ coincides with the commutator algebra $[\mathfrak g,\mathfrak g]$ (also called the derived Lie algebra of $\mathfrak g$). The commutator subgroup of a simply-connected (or connected linear) Lie group $G$ is always closed in $G$.
2019-02-20 08:02:59
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126
https://yutsumura.com/tag/similarity-transformation/
# Tagged: similarity transformation ## Problem 452 Let $A$ be an $n\times n$ complex matrix. Let $S$ be an invertible matrix. (a) If $SAS^{-1}=\lambda A$ for some complex number $\lambda$, then prove that either $\lambda^n=1$ or $A$ is a singular matrix. (b) If $n$ is odd and $SAS^{-1}=-A$, then prove that $0$ is an eigenvalue of $A$. (c) Suppose that all the eigenvalues of $A$ are integers and $\det(A) > 0$. If $n$ is odd and $SAS^{-1}=A^{-1}$, then prove that $1$ is an eigenvalue of $A$.
2021-01-19 12:37:56
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164
https://paperswithcode.com/paper/communication-efficient-parallel-algorithms
# Communication Efficient Parallel Algorithms for Optimization on Manifolds Bayan SaparbayevaMichael Minyi ZhangLizhen Lin The last decade has witnessed an explosion in the development of models, theory and computational algorithms for "big data" analysis. In particular, distributed computing has served as a natural and dominating paradigm for statistical inference... (read more) PDF Abstract
2020-05-28 06:39:30
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74
https://www.albert.io/ie/sat-math-1-and-2-subject-test/evaluating-quadratic-expressions
? # SAT® Subject Test in Math 1 & 2 Free Version Easy SATSTM-PKNCYE What is the value of the expression $3{y}^{2}-2y+3$ for $y=3$? A $18$ B $21$ C $24$ D $26$ E $36$
2016-12-09 11:41:20
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78
https://www.gradesaver.com/textbooks/math/calculus/calculus-3rd-edition/chapter-1-precalculus-review-1-1-real-numbers-functions-and-graphs-exercises-page-10/30
## Calculus (3rd Edition) a. 9 is the maximum value b. $x^2 − 16 ≤ 9$ is true. See proof Solve for x: $x-4\leq1$ and $x-4\geq-1$ $x\leq5$ and $x\geq3$ a. The maximum value can be found by using the greatest value of x, which is 5 $|5+4|=9$ b. $|x^2 − 16| ≤ 9$ solve for $x$: $x^2 − 16 ≤ 9$ and $x^2 − 16 \geq -9$ $x\leq5$ and $x\geq\sqrt{7}$, this does not contradict the previous conditions that we found for x, which is $x\leq5$ and $x\geq3$. Therefore, $x^2 − 16 ≤ 9$ is true.
2020-11-28 19:51:52
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213
https://cungthi.vn/cau-hoi/find-a-mistake-in-the-four-underlined-parts-of-the-sentence--19691-261.html
# Find a mistake in the four underlined parts of the sentence and correct it: Population density in the Red River Delta is by now more densely populated region in Vietnam with 1,136 people per square kilometer. A. more B. densely populated C. with 1,136 people D. per square kilometer Đáp án:A Lời giải: more → the most
2019-12-07 16:54:39
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89
https://mdtpmodules.org/linr-1-lesson-3-explore-vertical-lines-solutions/
# LINR 1 | Lesson 3 | Explore (Vertical Lines) Solutions 1. Answer may vary. 2. $$x$$ values are all the same 3. Change in $$\frac{Δy}{Δx}= \frac{1}{0}$$ 4. The slope is undefined. 5. There is no $$y$$-intercept 6. Equation is $$x = 2$$ 7. Not in slope-intercept form Table made in Desmos.com
2022-05-27 22:28:42
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104
https://www.gradesaver.com/textbooks/science/chemistry/chemistry-molecular-approach-4th-edition/chapter-3-exercises-page-133/118
## Chemistry: Molecular Approach (4th Edition) a) ethane b) $CH_3CH_2CH_2CH_2CH_3$ c) hexane d) $CH_3CH_2CH_2CH_2CH_2CH_2CH_3$ a) 2 carbon atoms in the alkane. So, its name is ethane b) pentane has 5 carbon atoms and 12 hydrogen atoms. Its formula is $CH_3CH_2CH_2CH_2CH_3$ c) 6 carbon atoms in the alkane. So, its name is hexane d) heptane has 7 carbon atoms and 16 hydrogen atoms. Its formula is $CH_3CH_2CH_2CH_2CH_2CH_2CH_3$
2018-10-21 11:14:50
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175
https://me.gateoverflow.in/201/gate-mechanical-2014-set-3-question-5
The definite integral $\int_{1}^{3}\dfrac{1}{x}$ is evaluated using Trapezoidal rule with a step size of $1$. The correct
2023-02-07 02:27:07
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35
http://www.gradesaver.com/textbooks/science/chemistry/chemistry-a-molecular-approach-3rd-edition/chapter-2-sections-2-1-2-9-exercises-review-questions-page-79/27
## Chemistry: A Molecular Approach (3rd Edition) A mole is a unit representing $6.022\times10^{23}$ particles. $6.022\times10^{23}$ is Avogadro's number.
2018-03-18 23:29:33
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46
https://mathoverflow.net/questions/330000/finite-picard-group
# Finite Picard group Does there exist a connected scheme, smooth, proper, and positive-dimensional over $$\mathbb{C}$$ with finite Picard group? Note that Picard group has cardinality$$>1$$. Also note that this can not happen for projective schemes.
2019-12-06 22:33:10
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60
http://wikieducator.org/User:Jtneill/WikiEducator/Questions_and_comments/Navigation_font_size
# User:Jtneill/WikiEducator/Questions and comments/Navigation font size Jump to: navigation, search The font size for the sidebar and the topbar appear in very small font I'm using Firefox 3. • mmmm -- not sure what the problem might be here. Do you have the same issue on other Mediawiki installations? --Wayne Mackintosh 02:16, 24 May 2008 (UTC) • Yes, for some installations. -- Jtneill - Talk 05:04, 29 June 2008 (UTC)
2017-12-18 05:18:35
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122
https://www.esaral.com/q/in-freundlich-adsorption-isotherm-at-moderate-pressure-52228
# In Freundlich adsorption isotherm at moderate pressure, Question: In Freundlich adsorption isotherm at moderate pressure, the extent of adsorption $\left(\frac{x}{m}\right)$ is directly proportional to $\mathrm{P}^{\mathrm{x}}$. The value of $\mathrm{X}$ is: 1. $\infty$ 2. 1 3. Zero 4. $\frac{1}{n}$ Correct Option: , 4 Solution: $\frac{x}{m}=p^{x}$ the formula is $\frac{x}{m}=p^{1 / n}$ Hence $x=\frac{1}{n}$ The value of 'n' is any natural number.
2023-04-01 21:00:39
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151
http://clay6.com/qa/49147/if-a-and-b-are-two-sets-such-that-a-and-b-then-a-cap-b-times-a-
Browse Questions # If A and B are two sets such that A = {x: x $\in$ R and |x| = 5} and B = {x: x is a solution of $x^3 − 25x − x^2 + 25$}, then (A $\cap$ B) $\times$ A? {(−5, −5), (−5, 5), (5, −5), (5, 5)}
2017-06-25 05:16:23
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98
http://www.gradesaver.com/textbooks/math/other-math/basic-college-mathematics-9th-edition/chapter-8-geometry-8-8-pythagorean-theorem-8-8-exercises-page-594/32
## Basic College Mathematics (9th Edition) Hypotenuse of the triangle is $\approx 5.9$ mi. Let $H =$ hypotenuse of the triangle $a^{2} + b^{2} = c^{2}$ $4.2^{2} + 4.2^{2} = H^{2}$ $17.64 + 17.64 = H^{2}$ $35.28 = H^{2}$ $H = \sqrt 35.28$ $H = 5.939...$ $H \approx 5.9$ mi
2017-05-29 00:21:39
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123
https://www.wikidata.org/wiki/Q4455030
# Stone's theorem on one-parameter unitary groups (Q4455030) ${\displaystyle (U_{t})_{t\in \mathbb {R} }}$
2018-01-18 16:16:53
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37
http://clay6.com/qa/48871/find-the-domain-and-range-of-the-relations-defined-by-the-following-arrow-d
# Find the domain and range of the relations defined by the following arrow diagram. Domain of $R_1$ = {a, a, b, b, c} = {a, b, c} , Range of $R_1$ = {x, y, z}
2018-03-23 05:24:37
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59
https://brilliant.org/problems/just-a-problem-2/
# An algebra problem by Mauren Mark Mediante Algebra Level 3 Let AB and CD be the smallest possible two consecutive prime numbers with digits A, B, C and D, such that the value of $A+B+C+D$ is a prime number (A and C may be equal). Find the value of $(A+C)^2 + (B+D)^2 + A + D$. ×
2017-10-19 22:04:56
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86
https://docs.astropy.org/en/latest/api/astropy.units.beam_angular_area.html
# beam_angular_area¶ astropy.units.beam_angular_area(beam_area)[source] Convert between the beam unit, which is commonly used to express the area of a radio telescope resolution element, and an area on the sky. This equivalency also supports direct conversion between Jy/beam and Jy/steradian units, since that is a common operation. Parameters beam_areaangular area equivalent The area of the beam in angular area units (e.g., steradians)
2020-08-04 16:54:16
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100
https://www.calculus-online.com/exercise/3564
# Vectors – Calculate the scalar multiplication of vectors – Exercise 3564 Exercise The vectors $$\vec{a},\vec{b}$$ Create a 120 degree angle. Given that $$|\vec{a}|=3, |\vec{b}|=4$$ Calculate $$\vec{a}\cdot \vec{a}$$ $$\vec{a}\cdot \vec{b}$$ $${(\vec{a}+ \vec{a})}^2$$ $$(3\vec{a}+2\vec{b})(\vec{a}+2\vec{b})$$ $$\vec{a}\cdot \vec{a}=9$$ $$\vec{a}\cdot \vec{b}=-6$$ $${(\vec{a}+ \vec{a})}^2=13$$ $$(3\vec{a}+2\vec{b})(\vec{a}+2\vec{b})=43$$ Solution Coming soon… Share with Friends
2019-11-13 20:23:56
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229
https://homework.cpm.org/category/CCI_CT/textbook/pc3/chapter/5/lesson/5.2.2/problem/5-63
### Home > PC3 > Chapter 5 > Lesson 5.2.2 > Problem5-63 5-63. Give a specific example to show that the following equation is false. $\log(M)-\log(N)=\frac{\log(M)}{\log(N)}$ Use a calculator. Does: $\log\left(27\right)-\log\left(5\right)=\frac{\log\left(27\right)}{\log\left(5\right)}$
2020-12-06 01:47:04
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104
https://www.gradesaver.com/textbooks/math/algebra/algebra-a-combined-approach-4th-edition/chapter-13-cumulative-review-page-968/6
## Algebra: A Combined Approach (4th Edition) $2(x-6)=4(x-3)-2x$ $2x-12=4x-12-2x$ $2x+2x-4x=-12+12$ $0=0$ x is a real number
2018-11-15 02:23:13
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63
https://projects.wyliodrin.com/wiki/electronics/kirchhofflaws
# Wyliodrin ## Reference electronics:kirchhofflaws # Kirchhoff Laws ## Formulas In a node, the sum of the currents is 0. Please keep in mind that currents have directions. Currents incoming have negative values, while currents outgoing have positive values. $\sum\limits_{i=1}^n(I_i) = 0$ The sum of the voltage in a circuit loop is equal to the power source voltage. $E = \sum\limits_{i=1}^n(U_i)$
2017-12-18 14:45:54
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115
https://www.physicsforums.com/threads/integration-by-parts.633419/
# Integration By Parts I understand this integration technique, for the most part. One thing I am curious to know is why, when you do your rudimentary substitution for this particular technique, does dv have to always include dx? ## Answers and Replies HallsofIvy $\int udv= \int d(uv)- \int vdu$. Of course, $\int d(uv)= uv$.
2021-05-13 00:35:30
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84
https://groupprops.subwiki.org/wiki/Sub-APS_of_groups
# Sub-APS of groups Let $(G,\Phi)$ be an APS of groups. A sub-APS $H$ of $G$ is, for every $n$, a subgroup $H_n$ of $G_n$ such that $\Phi_{m,n}(g,h) \in H_{m+n}$ whenever $g \in H_m, h \in H_n$. Thus, $H$ can be viewed as an APS of groups, in its own right.
2020-05-24 23:31:10
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99
http://mathhelpforum.com/discrete-math/7219-inverse-relation.html
## inverse relation Hi . I have this question( discrete math) : How can the matrix for R-1 , the inverse of the relation R, be found from the matrix representing R, when R is a relation a finite set A. Please ,How can I do this problem? thank you B
2017-04-28 02:57:54
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62
http://openstudy.com/updates/50538079e4b02986d3704c03
• TuringTest Why can I not seem to show that the volume of a spherical shell is$V\approx4R^2d$where R is the outer radius and d is the thickness? Mathematics Looking for something else? Not the answer you are looking for? Search for more explanations.
2017-03-27 18:27:45
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61
https://math.stackexchange.com/questions/2403702/is-any-dual-metrizable-locally-convex-space-a-frechet-space
# Is any dual metrizable locally convex space a Frechet space? The title basically says all of it. If a normed space $F$ is a dual of a normed space $E$, then $F$ is a Banach space. I wonder if the same holds for Frechet spaces. The strong dual $F$ of a locally convex space $E$ is complete, once $E$ is bornological, but I am not sure if this is the case here. Perhaps the completion of $E$ is though.
2019-09-21 05:17:24
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110
http://openstudy.com/updates/4fbdbdaae4b0c25bf8fc1072
## Frost 2 years ago What is the total surface area of this object? http://i49.tinypic.com/dg2yy9.png surface area of a cylinder = $$2\pi r^2 + 2\pi rh$$ where r = radius and h = height
2015-03-31 15:41:36
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60
http://www.chegg.com/homework-help/questions-and-answers/resistors-values-5-8-14-ohms-connected-series-circuit-85-v-battery-rate-energy-delivered-1-q937854
## Rate of energy Three resistors with values of 5, 8, and 14 ohms are connected in series in a circuit with a 8.5 V battery. At what rate is energy delivered to the 14 ohm resistor? I calculated current, I=.31 A, and Equivalent resistance, R = 27 Ohms Next, I used P=I2R to calculate rate of energy, but it's not right.  What is the answer, in W?
2013-05-20 05:47:48
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103
https://datascience.stackexchange.com/questions/67344/is-there-a-gradient-descent-based-optimization-algorithm-that-works-with-non-lin
# Is there a gradient descent-based optimization algorithm that works with non-linear constraints? I have a function to optimize with ca. 200 parameters + one constraint (sum of squares of the parameters must be equal one) This problem can be solved using Lagrange Multipliers and my intuition tells me, that methods that do that must be readily available. If I had a choice, I would prefer an algorithm existing on JuMP.jl
2021-10-22 22:39:52
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86
http://tuisyen.my/physics/electronics/
# Electronics ## Cathode Ray Oscillocope (C.R.O.) The Cathode Ray Cathode Ray Oscilloscope Uses and Operation of a C.R.O. ## Semiconductor Diode Semiconductor p-n Junction Diode Diode as A Rectifier ## Transistor Transistor Transistor as An Automatic Switch ## Logic Gate Logic Gate Combination of Logic Gate
2022-09-26 02:14:26
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75
https://socratic.org/questions/how-do-you-write-2-5-million-in-scientific-notation#380265
How do you write 2.5 million in scientific notation? 1 Answer Feb 20, 2017 2.5 million = 2,500,000. To write this in scientific notation we must move the decimal place $\textcolor{red}{6}$ places to the left therefore the exponent for the 10s terms will be positive: $2 , 500 , 000 = 2.5 \times {10}^{6}$
2021-10-25 08:04:05
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94
https://socratic.org/questions/how-do-you-balance-the-chemical-equation-h-2o
# How do you balance the chemical equation H_2O? To form ${H}_{2} O$ from it elements? ${H}_{2} \left(g\right) + \frac{1}{2} {O}_{2} \left(g\right) \rightarrow {H}_{2} O \left(l\right)$
2019-11-13 13:15:40
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70
https://www.physicsforums.com/threads/proof-of-linearly-independence.637632/
# Proof of Linearly independence pyroknife The problem is attached. I just wanted to see if the way I proved my statement is correct. My answer: No, because there exists more columns than rows, thus at least one free variable always exists, thus these vectors are linearly dependent. #### Attachments • Untitled.png 5.1 KB · Views: 351
2023-02-03 07:59:24
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79
http://th.nao.ac.jp/MEMBER/tomisaka/Lecture_Notes/StarFormation/5/node131.html
# Random Velocity Considering gas in Maxwellian velocity distribution, the distribution function for the velocity is as follows: (E.1) This gives the one-dimensional random velocity as (E.2) If we observe emissions from such a gas, the emission line is broaden due to the Doppler shift. Using equation (E.2), the HWHM (half width of half maximum: the line width measured from the the center of the emission line to the point of the half intensity; see Fig.E.1) of the emission line is (E.3)
2018-01-19 21:06:39
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117
https://jsthcitpizifly.com/2020/06/15/LeetCode-Solution-104/
LeetCode Solution: 104. Maximum Depth of Binary Tree ## 104. Maximum Depth of Binary Tree Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. Note: A leaf is a node with no children. Example: Given binary tree [3,9,20,null,null,15,7], return its depth = 3. 1. 如果当前为空指针就返回0 2. 定义一个左树深度 一个右树深度 3. 如果存在左树或者右树 就继续遍历 (加1表示当前所处为上一层的子树 当前层存在所以加1 4. 因为不知道左树深还是右树深 返回左右树的最大值 Author: Jsthcit
2021-03-03 21:09:09
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208
https://www.jonathangilligan.org/publications/itano_1993_quantum_measurements/
, , , , , , , & , “Quantum measurements of trapped ions,” Vistas in Astronomy, 169–183 (1993). #### Abstract: «  Quantum projection noise | Light scattered from two atoms »
2019-04-21 08:21:05
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48
https://socratic.org/questions/how-do-you-convert-25-000-mu-m-m
# How do you convert 25,000 mum = m? Mar 18, 2018 See a solution process below: #### Explanation: The conversion factor for micro meters to meters is: $1 \mu \text{m" = 0.000001"m}$ To find how many meters in $25 , 000 \mu \text{m}$ we multiply each side of the conversion equation by $\textcolor{red}{25 , 000}$: $\textcolor{red}{25 , 000} \times 1 \mu \text{m" = color(red)(25,000) xx 0.000001"m}$ $25 , 000 \mu \text{m" = 0.025"m}$
2022-01-18 00:48:53
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158
https://brilliant.org/problems/chocolate-breaker/
Chocolate Breaker You have many chocolate bars of unit length and start breaking each of them into 3 pieces by randomly choosing two points on the bar. What are the average lengths of the shortest, medium, and longest pieces? If the product of these averages can be expressed as $$\frac pq$$, where $$p$$ and $$q$$ are coprime positive integers, give your answer as $$p+ q$$. ×
2018-06-19 04:53:46
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88
https://cs.overleaf.com/latex/examples/student-marking-submission-slip/fbfzftjtnpsy
Skip to content Last Updated 8 years ago License Other (as stated in the work) AbstractA simple submission slip designed to be attached to student work for marking. The source code is available on github. This is the release from 12th April 2014. This work is provided for use under the open source MIT license (MIT).
2022-10-01 15:12:00
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72
https://docs.microej.com/en/latest/KernelDeveloperGuide/featuresCommunication.html
# Communication between Features¶ Features can communicate together through the use of shared interfaces. The mechanism is described in Chapter Shared Interfaces of the Application Developer’s Guide. ## Kernel Type Converters¶ The shared interface mechanism allows to transfer an object instance of a Kernel type from one Feature to an other. To do that, the Kernel must register a new converter (See Kernel.addConverter() method).
2021-08-05 10:48:10
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79
https://socratic.org/questions/what-is-the-temperature-of-sirius
# What is the temperature of Sirius? Sirius A have a surface temperature of ${9940}^{0} K$. Sirius B have a surface temperature of ${25200}^{0} K$.
2018-10-23 11:51:51
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43
https://socratic.org/questions/what-is-the-most-stable-potassium-ion
# What is the most stable potassium ion? Jan 4, 2017 #### Answer: There is only one stable potassium ion, ${K}^{+}$ #### Explanation: The cation ${K}^{+}$ is formed when an atom of potassium loses its single valence electron (a $4 s$-electron). This process requires very little energy (the ionization energy of potassium is relatively low), and so the element is readily oxidized (it is a strong reducing agent).
2019-03-23 12:42:36
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102
http://www.gradesaver.com/textbooks/math/geometry/elementary-geometry-for-college-students-5th-edition/chapter-1-section-1-6-relationships-perpendicular-lines-exercises-page-52/20b
## Elementary Geometry for College Students (5th Edition) U denotes a $union$ of two or more sets. A $U$, where $a$ and $b$ are sets (a collection of items), is every item included in set $a$ or set $b$ with no repetition. You can call this the "$union$" of $a$ and $b$. Generally, U denotes union.
2018-02-23 01:05:51
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83
https://socratic.org/questions/how-do-you-find-the-quotient-of-4n-2-3n-6-div-n-2-using-long-division
# How do you find the quotient of (4n^2-3n+6)div(n-2) using long division? Quotient $\left(4 n - 5\right)$; Remainder $- \frac{4}{n - 2}$ $\textcolor{w h i t e}{a a a a a a a a a a a a a a} 4 n \textcolor{w h i t e}{a a a} - 5$
2020-11-28 23:43:43
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104
https://brilliant.org/problems/count-count/
# Count Count!!! If $$\frac{1}{21}$$ equals the repeating decimal $$0.0476190476190...$$, what is the $$51^{st}$$digit after the decimal point of the repeating decimal? × Problem Loading... Note Loading... Set Loading...
2018-10-16 22:02:30
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58
https://indico2.riken.jp/event/3082/timetable/?view=indico_weeks_view
The 24th International Spin Symposium from Monday, 18 October 2021 (09:00) to Friday, 22 October 2021 (18:00)
2021-12-03 02:04:04
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36
http://mathoverflow.net/questions/22395/chow-groups-of-arithmetic-surfaces
# Chow groups of arithmetic surfaces Given an arithmetic surface $S$, I would like to know the following properties of its first and second Chow groups $CH^1(S), CH^2(S)$: 1. Are they finitely generated? If so, what is the rank? 2. What is the size of the torsion subgroup? - The example you gave at the end doesn't seem to be homogeneous. Is that intentional? – S. Carnahan Apr 24 '10 at 0:24
2015-11-30 13:43:45
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105
https://dev.goldbook.iupac.org/terms/view/L03646
## Wikipedia - Flusso luminoso luminous flux https://doi.org/10.1351/goldbook.L03646 Of a source of @L03647@ $$I$$ in an element of solid @A00346@ $$\text{d}\varOmega$$ is given by $$\text{d}\varPhi = I\ \text{d}\varOmega$$. Sources: Green Book, 2nd ed., p. 72 [Terms] [Book] PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 979 [Terms] [Paper]
2021-06-19 10:01:15
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150
https://www.lessonplanet.com/teachers/dividing-by-powers-of-ten-a-7th-8th
# Dividing by Powers of Ten (A) ##### This Dividing by Powers of Ten (A) worksheet also includes: In this powers of ten worksheet, students divide three to seven-digit whole numbers by positive powers of ten. This four-page worksheet contains approximately 40 problems, with answers. Concepts Resource Details
2019-12-07 02:07:07
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64
http://www.gradesaver.com/textbooks/math/calculus/calculus-10th-edition/chapter-1-limits-and-their-properties-1-4-exercises-page-80/50
## Calculus 10th Edition $f(x)$ has an irremovable jump discontinuity at $x=5.$ $f(x)=\dfrac{|x-5|}{x-5};x\ne5\to$ $\lim\limits_{x\to5^+}f(x)=\dfrac{|5^+-5|}{5^+-5}=\dfrac{0^+}{0^+}=1.$ $\lim\limits_{x\to5^-}f(x)=\dfrac{|5^--5|}{5^--5}=\dfrac{0^+}{0^-}=-1.$ Since $\lim\limits_{x\to5^+}f(x)\ne\lim\limits_{x\to5^-}f(x),$ then $\lim\limits_{x\to5}f(x)$ does not exist and the function has an irremovable (jump) discontinuity.
2017-04-30 13:12:42
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198
https://socratic.org/questions/how-do-you-solve-and-write-the-following-in-interval-notation-19-10-x-11
# How do you solve and write the following in interval notation: -19<10-x<=-11? Jun 14, 2016 $21 \le x < 29.$ Interval Form : $x \in \left[21 , 29\right) .$ Given that, $- 19 < 10 - x \le - 11.$ We add -10 in the inequality (ineql.) to get, $- 29 < - x \le - 21.$ Then, we multiply this ineql. by $- 1$, a negative number, causing reversal of the order, $29 > + x \ge 21 ,$,i.e., $21 \le x < 29.$ We can write this in Interval Form as $x \in \left[21 , 29\right) .$
2019-10-21 07:12:42
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177
https://brilliant.org/problems/remainders-or-what/
# Remainders or what? What is the remainder obtained when $43^{101} +23^{101}$ is divided by 66? × Problem Loading... Note Loading... Set Loading...
2020-07-11 03:54:13
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38