The measure of an angle is 11°. what is the measure of a supplementary angle?

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5