Acircle has an area of 78.5 square inches. what is the diameter of the circle?

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

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)

The statement tan theta= -12/5, csc theta=-13/12, and the terminal point determained by theta is in quadrant two