The acute angles of a right triangle are
a. supplementary.
b. complementary.
c. congruent.
d. linear.

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if

Add: (6x^2-5x+3) + (3x^3+7x-8) a. 9x^2+12x-5 b. 9x^2+2x+11 c. 9x^2+2x-5 d. 9x^2-2x+5