Mathematics, 14.02.2020 18:25, kiani46

It costs 2.5 cents to copy a page. How many pages can you copy for $20?

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Mathematics, 21.06.2019 17:00, softball2895

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Mathematics, 21.06.2019 18:30, 60129

True or false? a circle could be circumscribed about the quadrilateral below.

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Mathematics, 21.06.2019 18:30, jhonpiper

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

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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.