*PLEASE ANSWER, ASAP* How would you calculate the area of the quarter circle represented in the upper left hand corner of this figure?

What is the result of the following division?

1: 4 if the wew 35 surfboards at the beach how many were short boards?

(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.)