Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x. f(x)=4/x and g(x)=4/x

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

This is different from the first one can someone me

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