olive has 3 fair coins. She will toss each coin one time. What is the probability that all 3 coins will land with “heads” facing up?

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

Triangle knm is what is true about the sides of knm

Plz hurry evaluate the expression a+b where a=8 and b=19