Question 6
A regular octagon is centered at the origin. What clockwise rotation 95 degrees and 175 degrees maps the octagon itself?

What is the number 321,000,000 in scientific notation? also what is the 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.

What multiplys to be 1 but adds up to be 4