Select ALL the correct answers. Select all the expressions that are equivalent to the polynomial below. 4(x − 4) − 2(3x2 + 3x − 20) 4(x − 4) + 2(3x2 + 3x − 20) (11x2 + 7x − 55) − (5x2 − 3x + 1) (3x2 + 5x − 28) − (2x2 + 4x + 28) (11x2 + 7x − 55) + (5x2 − 3x + 1) (3x2 + 5x − 28) + (3x2 + 5x − 28)

Which line is parallel to the line that passes through the points (2, –5) and (–4, 1) a. y=-x+5 b. y=-2/3x+3 c. y=2/3x-2 d. y=x+5

Acaterer charges $500 plus $30 per guest to cater a wedding. walt and traci don't want to spend more than $8000 on catering. write and solve an inequality in terms of the number of guests, g, that can be invited. a) 30g ? 8000; g ? 267 b) 500g < 8000; g < 16 c) 500 + 30g < 8000; g < 250 d) 500 + 30g ? 8000; g ? 250

(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.)