What is the longest line segment that can be drawn in a right rectangular prism that is 14 cm long, 11 cm wide, and 7 cm tall?
The longest line segment is cm

Because of your favorite lemonade it is $3.84 for 3 gallons. write this as an unit rate

Simplify the expression. -2/5(10+15m-20n)

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.