Mathematics, 24.01.2020 16:31 annikafischer
The mean of nine test scores is 61%. if a score of 71 is added to the group of scores, what is the new mean?
Answers: 1
Mathematics, 21.06.2019 16:30
Anyone know? is appreciated! will mark brainliest if correct!
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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 21:30
A.s.a.! similarity in right triangles, refer to the figure to complete this proportionc/a = a/? a.) cb.) hc.) rd.) s
Answers: 1
The mean of nine test scores is 61%. if a score of 71 is added to the group of scores, what is the n...
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