1. What is the distance between the points (-2, 5) and (4, 7)? Round to the nearest tenth. 2. Saskia and Mariam begin at the same location. Saskia walks 20 feet north. Mariam walks 18 feet west. How far apart are they now? Round to the nearest tenth.

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

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