Mathematics, 09.12.2021 02:30 quintinlarrieu
QUESTION 20 The hotel also has a small bookstore, where it stocks business newspapers for its customers. It purchases the newspapers from a wholesaler and pays $0.5 per copy and sells newspapers to customers at $1.0 a copy. Demand for newspapers is normally distributed with mean 50 and standard deviation 9. Use the information to answer Questions 20-27 below. What is the underage cost of the bookstore for purchasing a copy of the newspaper
Answers: 1
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 20:40
The acceleration of an object due to gravity is 32 feet per second squared.what is acceleration due to gravity in inches per second squared?
Answers: 2
Mathematics, 21.06.2019 21:30
Plz ( true - false) all triangles have interior angles whose measure sum to 90.
Answers: 2
QUESTION 20 The hotel also has a small bookstore, where it stocks business newspapers for its custom...
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