Mathematics, 30.04.2021 15:20 alyssabailey
A class contains 30 students. Ten are female (F) and U. S. citizens (U); 12 are male (M) and U. S. citizens; 6 are female and non-U. S. citizens (N); 2 are male and non-U. S. citizens. A name is randomly selected from the class roster and it is female. What is the probability that the student is a U. S. citizen?
Answers: 1
Mathematics, 21.06.2019 15:50
Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?
Answers: 1
Mathematics, 21.06.2019 18:30
If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.
Answers: 1
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 23:00
Bobs burgers bam has a special deal of 4 hamburgers for $6. at that rate, how much should it cost to buy 3 hamburgers?
Answers: 1
A class contains 30 students. Ten are female (F) and U. S. citizens (U); 12 are male (M) and U. S. c...
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