What is cosD, in simplest form?

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

Square a has a side length of (2x-7) and square b has a side length of (-4x+18). how much bigger is the perimeter of square b than square a?and show all work! you so

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42