A company that manufactures and ships widgets has two different sizes for boxes. One size box has a volume modeled by the function fx=x3-500x+3000. The other size box has a volume modeled by the function gx=4x3-20x2-240x. Write a simplified polynomial expression with terms in descending order that models the combined volume for one small box and one large box.

Which of the following values are in the range of the function graphed below? check all that apply ! - will give the answer "brainliest! "

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.