À Box contains 8 books, 7 pens, and 5 erasers. What is the probability against selecting a books or an eraser from the box?

Which system of linear inequalities is represented by the graph?

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

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5