Which of the following expression is equal to -3x^2-12? a. (-3x+6i)(x+2i) b. (-3x-6i)(x+2i) c. (-3x+2i)(x-6i) d. (-3x-4i)(x-3i) 99 !

Acircle has a circumference of 7.850 units. what is its radius?

What is the arc length of the subtending arc for an angle of 72 degrees on a circle of radius 4? o a. 8a oc. 16 t d. 8

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), find r' if c c' = 0.25 and d = 6.0. a. 6 b. 12 c. 18 d. 24