Acontractor wants to use 32 feet of moulding, cut into 3 pieces, to trim the sides and top of a garage door. the long piece is 1 foot longer than 3 times the length of each shorter piece. find the length of each piece.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)