a 273-ft^3 pool is to be built with a square bottom of side length x. the sides are built with tiles and the bottom with cement. the cost per unit of tiles is $77/ft2 while the cost of the bottom is $22/ft2. write the total cost c as a function of x.

If myesha works overtime, she gets paid "time and a half" for every hour she works. in other words, for every hour over 40 hours myesha works each week, she gets her hourly pay plus half her hourly pay. what is myesha's pay per hour when she works overtime?

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

(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.)