A playground is 75 yards by 75 grounds. Calvin walked across the playground from one corner to the opposite coner. How far did he get

Two lines parallel to the same plane are parallel to eachother

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

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