Six yellow marbles and four blue marbles arecollected. all ten
are laid down in a row. what is...
Mathematics, 13.09.2019 17:30 dozsyerra
Six yellow marbles and four blue marbles arecollected. all ten
are laid down in a row. what isthe probability that two blue
marbles wil not lay next to eachother?
Answers: 1
Mathematics, 21.06.2019 18:40
2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?
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 22:30
If a line is defined by the equation y = 5x + 2, what is the slope?
Answers: 2
Mathematics, 22.06.2019 01:00
Divide reduce the answer to lowest term 3/7 divided 1 1/6
Answers: 3
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