The battery in an MP3 player cost $70. It has an estimated useful life of 500 service-hours and a trade-in value of $0 at the end of its useful life. In the first year, the MP3 player was used for 400 hours. Use the service hours method to find the depreciation charges for the first year. a. $56.00 b. $59.00 c. $61.00 d. $64.00

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

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