HELP-During a soccer game, a goalie kicks a ball upward from the ground. The equation ht=-202+40t represents the height of the ball above the ground in feet as a function of time in seconds. When the ball begins moving downward toward the ground, a player from the other
team intercepts the ball with his chest 10 feet above the ground. How long after the goalie kicks the ball does the player intercept the
ball?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

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

Which number completes the inequality? 2/3 < _ < 7/9