Gail and 3 of her friends all share half of a pie. all the pieces in the pie put together make up 180 degrees. gail and her friends finish the pie and they each eat an equal piece. they believe each piece has an angle equal to 25 degrees. are their calculations correct? explain.

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?