Afunction describes a proportional relationship for a set of discrete data. what is true about the graph of that function? it is a line connecting a series of points. it is a line drawn only in the first quadrant. it is a series of points that cannot be connected by a straight line. it is a series of points that fall in a straight line but are unconnected.

Can someone answer this question? : )

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

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?