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Mathematics, 11.10.2019 06:40 bugbug26
Sarah and her family just got back from a vacation. they had been traveling for 3 days, driving 8 1/2 hours each day. how many hours altogether were they in the car?
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Mathematics, 21.06.2019 16:30, pennygillbert
Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25
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Mathematics, 21.06.2019 18:30, genyjoannerubiera
Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8 feet of ribbon. he cut off one piece that was 3 5/8 feet long and another piece that was 1 1/4 feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.
Answers: 1
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Mathematics, 21.06.2019 19:50, Roshaan8039
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
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Sarah and her family just got back from a vacation. they had been traveling for 3 days, driving 8 1/...
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