Mathematics, 03.01.2022 01:40 xxxxbratt
find the vector in the subspace ww spanned by ⎧⎩⎨⎪⎪⎪⎪⎪⎪⎡⎣⎢⎢⎢−2−4−2−5⎤⎦⎥⎥⎥,⎡⎣⎢⎢⎢−2 −553⎤⎦⎥⎥⎥⎫⎭⎬⎪⎪⎪⎪⎪⎪{[−2−4−2−5],[−2−5 53]} which is closest to ⎡⎣⎢⎢⎢−8−2014−2⎤⎦⎥⎥⎥[−8−2014−2].
Answers: 3
Mathematics, 21.06.2019 19:30, bigboss2984
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Mathematics, 21.06.2019 20:50, brea2006
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
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Mathematics, 22.06.2019 00:20, Imagine2013
Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6
Answers: 2
find the vector in the subspace ww spanned by ⎧⎩⎨⎪⎪⎪⎪⎪⎪⎡⎣⎢⎢⎢−2−4−2−5⎤⎦⎥⎥⎥,⎡⎣⎢⎢⎢−2 −553⎤⎦⎥⎥⎥⎫⎭⎬⎪⎪⎪⎪⎪⎪...
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