Mathematics, 29.06.2019 12:30 ogiebert
Sumaya is reading a book with 288 pages she has already read 90 pages she plans to read 20 more pages each day until she finshes the book determine how many days sumaya will need to finsh the book in your answer count part of a day as a full day show that your work is reasonable
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Mathematics, 21.06.2019 19:50
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 20:30
William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)
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Sumaya is reading a book with 288 pages she has already read 90 pages she plans to read 20 more page...
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