Mathematics, 29.10.2020 23:50 tonydeanfbg4798
A chef can finish a catering job in 9hrs. His student can do the same job in 18hr. How long will it take them to do the job if they work together?
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 20:10
Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?
Answers: 1
Mathematics, 22.06.2019 05:00
What does the quadrilaterals on a kid with her art class it is possible to draw a parallelogram that is not a rectangle explain
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Mathematics, 22.06.2019 05:00
Mrs. robinson bought a novel at a bookstore on sale for 20% off its regular price of $29.99. mr chang bought the same novel at a different bookstore for 10% off its regular price of $25. which person received the better discount?
Answers: 1
A chef can finish a catering job in 9hrs. His student can do the same job in 18hr. How long will it...
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