On the coordinate grid of a map. jeff's house is located at (9,5). hannah's house is at (-5,-5). kenya's house is located at the midpoint between jeff and hannah's houses. what is the distance from hannah's house to kenya's house? a) 2 miles b) 4.79 miles c) 7.28 miles d) 8.60 miles

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

(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.)

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.