Mathematics, 03.11.2019 02:31 Nathanr23
Amotorboat takes 5 hours to travel 100 miles going upstream. the return trip takes 2 hours going downstream. what is the rate of the boat in still water and what is the rate of the current?
Answers: 1
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 22:50
1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?
Answers: 2
Mathematics, 22.06.2019 02:00
Use the zero product property to find the solutions to the equation (x+2)(x+3)=12
Answers: 3
Amotorboat takes 5 hours to travel 100 miles going upstream. the return trip takes 2 hours going dow...
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