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Mathematics, 27.07.2019 06:30, shaylawaldo11
Some standardized tests, such as the sat test, incorporate a penalty for wrong answers. for example, a multiple-choice question with five possible answers will have 1 point awarded for a correct answer and 1/4 point lost for an incorrect answer. find the expected number of points (mean) received for a multiple-choice question with five possible answers when a student just guesses at random.
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Mathematics, 21.06.2019 16:00, blackbetty79
Ernest is purchasing a $175,000 home with a 30-year mortgage. he will make a $15,000 down payment. use the table below to find his monthly pmi payment.
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Mathematics, 21.06.2019 19:50, Roshaan8039
Prove (a) cosh2(x) โ sinh2(x) = 1 and (b) 1 โ tanh 2(x) = sech 2(x). solution (a) cosh2(x) โ sinh2(x) = ex + eโx 2 2 โ 2 = e2x + 2 + eโ2x 4 โ = 4 = . (b) we start with the identity proved in part (a): cosh2(x) โ sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 โ sinh2(x) cosh2(x) = 1 or 1 โ tanh 2(x) = .
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Mathematics, 21.06.2019 23:30, lanlostreyn
Peyton's field hockey team wins 4 games out of every 7 games played. her team lost 9 games. how many games did peyton's team play?
Answers: 2
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