As the number of sides of a regular polygon increases, the measure of the central angle . A) increases
B) decreases

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Which of the following parabolas opens down?

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?