The rise and span for a roof are shown. the pitch of a roof is the ratio of the rise to the half span. if the rise is 8 feet and the span is 30 feet, what is the pitch in simplest form

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

(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.)

Will mark ! (10 points also! ) if x varies inversely with y and x =6 when y= 10, find y when x=8 a. y=4.8 b. y=7.5 c. y=40/3 d. y=4/15