You have 4/9 if a large bottle of cooking oil. you pour 3/5 of the cooking oil into a smaller bottle. how much of the entire larger bottle did you pour into the smaller bottle ? ?

Subtract 8 1/6 - 4 5/6 . simplify the answer and write as a mixed number.

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.

If value of cos330° is √3/2 then find tan165°.