Given a regular decagon, what are the measures of the angles formed by (a) two consecutive radii and (b) a radius and a side of the polygon?
45°: 225°
60: 240°
122, 198
36, 72

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30