An airplane with a speed of 160 knots is headed east while a 22-knot wind is blowing from 240°. find the ground speed to the nearest tenth of a knot

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

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.