Mathematics, 07.07.2019 19:30 ibahadurali786oz4gxs
Abook store has twice as many history books as science books. the store has 81 history and science books altogether how many of wach kind does the bookstore have? write equation
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Mathematics, 21.06.2019 19:00
You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?
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Mathematics, 21.06.2019 19:50
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
Mathematics, 21.06.2019 22:00
Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.
Answers: 2
Abook store has twice as many history books as science books. the store has 81 history and science b...
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