Mathematics, 18.03.2021 03:30 batmanmarie2004
Solve each system by substitution | 2x + 7y = -11 & y=7x+13 | put in (x, y) format.
Answers: 3
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Δabc is reflected across line l to form δ alblcl, and a¯¯¯al¯¯¯¯ intersects line l at point d. which equation is not necessarily true?
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Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?
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Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation
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Mathematics, 21.06.2019 20:50
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.
Answers: 3
Solve each system by substitution | 2x + 7y = -11 & y=7x+13 | put in (x, y) format....
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