Mathematics, 15.07.2019 18:00 datboyjulio21
At noon, ship a is 170 km west of ship b. ship a is sailing east at 40 km/h and ship b is sailing north at 20 km/h. how fast is the distance between the ships changing at 4: 00 pm?
Answers: 1
Mathematics, 21.06.2019 16:30
Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²
Answers: 3
Mathematics, 21.06.2019 17:00
Can someone pls ! pls answer all. no explanation needed..
Answers: 1
Mathematics, 21.06.2019 19:30
Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.
Answers: 1
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
At noon, ship a is 170 km west of ship b. ship a is sailing east at 40 km/h and ship b is sailing no...
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