Kai is making a chessboard using pieces of wood that measure 1 square inch. When he finishes, the chessboard will have an area of 64 square inches.
How many pieces of wood should he put along each side?
64 pieces of wood
642 pieces of wood
8 pieces of wood
82 pieces of wood

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°

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.

Is (0,0) a to ? ys x2 - 4 y> 2x-1