The system of equations 3x-6y=20 and 2x-4y=3 is

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

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

Hundred and tens tables to make 430 in five different ways