Mathematics, 20.04.2020 08:19, sahaitong1844
A boat travels 224 miles downstream in the same time it takes to travel 136 miles upstream. the speed of the current in the stream is 5.5 miles per hour. find the speed of the boat in still water.
Answers: 1
Mathematics, 21.06.2019 18:30, alizeleach0123
Which representation has a constant of variation of -2.5
Answers: 1
Mathematics, 21.06.2019 19:20, joelpimentel
Which number line represents the solution set for the inequality - x 24?
Answers: 3
Mathematics, 21.06.2019 19:40, ashley24109
The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?
Answers: 2
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
A boat travels 224 miles downstream in the same time it takes to travel 136 miles upstream. the spee...
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