.prove that cos (90-A).sinA + sin(90 - A).cosA = 1

What is 32+4 x (16 x 1/2) -2 show your work}

What is the domain and range of each function 1. x (3, 5, 7, 8, 11) y ( 6, 7, 7, 9, 14) 2. x (-3, -1, 2, 5, 7) y (9, 5, 4, -5, -7)

The measure of an angle is 117°. what is the measure of a supplementary angle?