(4,5) (0,8)
Slope intercept form

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

Which expression is rational? 6. , square root two, square root 14, square root 49

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.