15) Scott is hiking in Grizzly Park. In the morning he hiked 4.5 miles. In the afternoon he hiked at a rate of 2.5 miles per hour. Which equation can be used to find y, the total distance he hiked if he hiked for x hours in the afternoon? (7.7A, RS,

RC2)

A) y = 4.5x + 2.5

C) y = 4.5x - 2.5

B) y = 2.5x + 4.5

D) y = 2.5x 4.5

Is it A, C,B, or D?

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

With alll of except for the 2 that i did already

An isosceles trapezoid with a perimeter of 42 inches. each of the congruent non parallel sides is 5 inches long, and the trapezoid is 3 inches tall. how long are the two parallel sides? a. 10 in, 22 in b. 16 in, 16 in c. 10 in, 16 in d. 12 in, 20 in