If DF = 170, find the value of x. Then find DE and EF.
DE=3x + 20
EF=2x + 40

Rearrange the formula c^2 = a^2 + b^2 for b

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 method of gathering data will be most effective in learning how diet and fitness choices affect long-term healt