Determine which equation below has a solution of a = 2. A. 2a + 3a – 6=-21
B. 8 = 3 + 4a-3-5a
C. -2 = 2 + 5a - 2 - 6a
D. -4a + 3a - 6 = -4

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

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

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297