Mathematics, 08.12.2020 20:30 drcarver
A train travels 90 3/5 miles 3/4 of an hour. what is the average speed, in miles per hour, of the train?
Answers: 2
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
Find the maximum value of p= 4x + 5y subject to the following constraints :
Answers: 1
Mathematics, 21.06.2019 23:20
In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?
Answers: 2
Mathematics, 21.06.2019 23:50
The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?
Answers: 2
A train travels 90 3/5 miles 3/4 of an hour. what is the average speed, in miles per hour, of the tr...
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