Arectangle's length is twice its width. if the perimeter is 66 cm find the width of the rectangle

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

If you apply the changes below to the linear parent function f(x)=x what is the equation of the new function vertically stretched by a factor of 3 flip over the x axis

The volume of a box varies directly with its length if a box in the group has a length of 30inches and k=24 what is its volume