Mr. specter designed the layout for a factory. the roof of the factory has an elevation of 56.2 feet, and the floor of the lowest level has an elevation of -15.3 feet. a pulley is installed on an outer wall at an approximate elevation equal to of the total height of the factory. the factory office floor is located 5.5 feet above the pulley. what is the approximate elevation of the factory office floor?

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

What are the domain and range of the function f(x)=2^x+1

(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.)