A pendulum is swinging next to a wall. The distance D(t) (in cm) between the bob of the pendulum and the wall as a function of time t (in
seconds) can be modeled by a sinusoidal expression of the form a • sin(b. t) + d.
Att = 0, when the pendulum is exactly in the middle of its swing, the bob is 5 cm away from the wall. The
bob reaches the closest point to the wall, which is 3 cm from the wall, 1 second later.
Find D(t).

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