Calculate the circumference of the inscribed circle. [Use π = 3.14]
A) 18.84 ft
B) 37.68 ft
C) 48 ft
D) 75.36 ft

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

Which two undefined geometric terms always describe figures with no beginning or end?

(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.)