Atriangle is right angled if the sides are a=m2-n2, b=2mn and c= m2 + n2 where m and n are positive integers and m is greater then n. show that this is true by substituting into the equation c2=a2+b2

A80-foot piece of siding is cut into three pieces so that the second piece is four times four times as long as the first piece and the third piece is five times as long as the first piece. if x represents the length of the first piece, find the lengths of all three pieces.

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

{0,1,2,3,4,5,6,20,21,22,23,24,25} the distribution is considered to be: skewed the right, skewed the left, not skewed?