The solution of a set of four linear inequalities has the shape of a parallelogram. One of the inequalities is Y Z 0. What four inequalities could form the system? A. y≥0, x≥0, x + y ≤ 6, x≤2
B. y ≥ 0,y ≥0, y ≥6, x ≤ 2
C. y ≥ 0, x ≥ 0, x ≤ 6, y ≤ 2
D. y ≥ 0, x ≥ 0, x ≤ -6, y ≤ 2

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