Mathematics, 24.12.2019 19:31 nina1390
You toss a rock up vertically at an initial speed of 39 feet per second and release it at an initial height of 6 feet. the rock will remain in the air for seconds. it will reach a maximum height of feet after seconds. ignore air resistance. this is the general version of the previous problem. again, ignore air resistance. assume a free falling object accelerates at g feet per second. (on earth, of course, g = 32.) your answer will be mathematical expressions involving g, v, and h. you toss a rock up vertically at an initial speed of v feet per second and release it at an initial height of h feet. the rock will remain in the air for seconds. it will reach a maximum height of feet after seconds.
Answers: 2
Mathematics, 21.06.2019 19:40
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
Answers: 1
Mathematics, 21.06.2019 21:00
Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?
Answers: 1
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