Mathematics, 13.10.2019 01:30 emmahirstein
Three families went to the fair together. an adult ticket cost $7, and a child ticket cost $5. if they spent a total of $58, how many adults and how many children were there?
Answers: 2
Mathematics, 20.06.2019 18:04, mazolethrin5672
What is the difference between the number of adult dogs at the park on monday and tuesday
Answers: 1
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
Three families went to the fair together. an adult ticket cost $7, and a child ticket cost $5. if th...
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