A student was assigned 40 math problems for homework. The student correctly answered 85% of the problems. How many homework problems did the student correctly answer ?

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

(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.)

Consider the image of klmn for the translation (x, y) → (x – 2, y – 1). what is the ordered pair of l′?