I WILL GIVE BRAINIEST The Contreras family drove 525 miles from San Diego to Sacramento at an average rate of 50 miles per hour. How many hours did this trip take?

Find the quotient. 50a2 – 98b2 -5a +7b

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

Find the value of x for which line a is parallel to line b