Mathematics, 02.02.2021 21:40 robertotugalanp1wlgs
A young boy has 40 total pets. He has two different types of pets. He has cats and penguins. The total number of the heads of his pets plus all the wings equals the total number of feet of his pets. How many cats and how many penguins are there?
Answers: 3
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 18:30
School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?
Answers: 2
Mathematics, 21.06.2019 19:00
How can you tell when x and y are not directly proportional?
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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
A young boy has 40 total pets. He has two different types of pets. He has cats and penguins. The tot...
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