If f is the function given by f(x)= integral from (4 to 2x) of sqrt(t^2-t)dt then f'(2) =?

What is the length of the unknown leg in the right triangle ?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square