1 Door Thickness: Most standard interior doors are 1 3/8 inches thick, and the door is slightly beveled to make the closure into the jamb. 2  Buy the correct door hardware for the application so the door handles for passage or privacy have the correct back set and bore. Door Thickness: Most standard interior doors are 1 3/8 inches thick, and the door is slightly beveled to make the closure into the jamb. 2  Buy the correct door hardware for the application so the door handles for passage or privacy have the correct back set and bore.
State whether the relationship between the variables in the table is a direct variation, an inverse variation, or neither. If it is a direct or inver...
Interpretation according to the definition of direct variation: When the radius (the independent variable) is doubled, the circumference (the dependent variable) is also doubled. This is how the relationship of the variables C (circumference) and r (radius) is described in direct variation. I hope that you realize that it's not just y=kx. If you know the key phrases and the definition (and the relationship), you can solve real-life situation problem involving direct variation.