1. Set A is the set of all non-negative multiples of 10 less than or equal to 50. Set B is the set of all non-negative multiples of 5 less than or equal to 50. Let the universal set be all integers from 1 to 50. (Lesson 21.1) a. Represent the following in set notation.

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

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