Selena rides her bicycle to work. it takes her 15 minutes to go 3 miles. if she continues at the same rate, how long will it take her to go 8 miles?

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

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

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.