The outer circumference of a dartboard is 48 centimeters. If the radius of the bull's eye in the center is 0.5 centimeters, what is the area of the dartboard not including the bull's eye? Use 3.14 for ||~~ and round your answer to the nearest hundredth.

True or false? many triangular shapes can be circumscribed about a given circle

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

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.