Anxiety Disorder Statistics. Anxiety Disorders affect 18.1 percent of adults in the United States (approximately 40 million adults between the ages of 18 to 54).
Perfect square. Perfect square is an element of algebraic structure which is equal to the square of another element. Square number, a perfect square integer.
Quick Answer. The definition of a perfect cube is a number that is the result of multiplying an integer by itself three times. In other words, according to Reference.com, it is an integer to the third power. An integer is any positive or negative whole number and zero.