Mathematics, 14.02.2022 09:20 makaalbarnthemeister
A 5% alcohol solution is to be mixed with a 9% alcohol solution to make 50 liters of an 8% alcohol solution. How many liters of the 5% solution are needed?
Answers: 2
Mathematics, 21.06.2019 13:30
Danielle has $127.02 in her account before making any transactions. over the course of a week, danielle makes the following transactions: transaction debit ($) credit ($) birthday check 75.00 night out 66.14 garage sale proceeds 121.58 charitable donation 42.25 doctorโs appointment 115.30 at the end of the week, how much money is in danielleโs account? a. $99.91 b. $27.11 c. $184.41 d. $142.16 select the best answer from the choices provided a b c d
Answers: 1
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) โ sinh2(x) = 1 and (b) 1 โ tanh 2(x) = sech 2(x). solution (a) cosh2(x) โ sinh2(x) = ex + eโx 2 2 โ 2 = e2x + 2 + eโ2x 4 โ = 4 = . (b) we start with the identity proved in part (a): cosh2(x) โ sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 โ sinh2(x) cosh2(x) = 1 or 1 โ tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 21:30
Find the domain and range of the following function f(x) = 51x - 21+ 4
Answers: 2
Mathematics, 21.06.2019 23:30
For the feasibility region shown below find the maximum value of the function p=3x+2y
Answers: 3
A 5% alcohol solution is to be mixed with a 9% alcohol solution to make 50 liters of an 8% alcohol s...
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