Mathematics, 01.07.2019 03:20 jazzy2742
Robert just got his first job and is saving 45 dollars a week. he also has 155 dollars saved from his birthday that just passed. to see how much money he will have in his bank account robert came up with the following expression: 45w+155, where the number of weeks that has been saving
Answers: 1
Mathematics, 20.06.2019 18:02
Annie walked her dog 2 1/4 miles from her house to the dog park and 3/7/8 miles around the park.then she walked the same distance home.how many miles did she walk in all?
Answers: 1
Mathematics, 20.06.2019 18:04
Prove the divisibility of the following numbers: ! i have no any is 1. 16^5 + 2^15 by 33 2. 15^7 + 5^13 by 30
Answers: 1
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) ā sinh2(x) = 1 and (b) 1 ā tanh 2(x) = sech 2(x). solution (a) cosh2(x) ā sinh2(x) = ex + eāx 2 2 ā 2 = e2x + 2 + eā2x 4 ā = 4 = . (b) we start with the identity proved in part (a): cosh2(x) ā sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 ā sinh2(x) cosh2(x) = 1 or 1 ā tanh 2(x) = .
Answers: 3
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