An acorn falls from the branch of a tree to the ground 25 feet below. The distance, S, that the acom is from the ground as it falls is represented by the equation S(t) = -16t^2 + 25, where t is the number of seconds. For which interval of time is the acorn moving through the air? a. 0<t<=5/4 b. 0<t<5/4 c. t>5/4 d. -5/4<t<5/4

Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. match each division expression with the correct quotient.

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.

Type the correct answer in each box, round your answers to the nearest integer 20 25 30 in the figure, the perimeter of hexagon abcdef is approximately w units, and its area is square units