Kite abcd has a longer diagonal ac with a length of 14 in. and a shorter diagonal bd with a length of 8 in. the diagonals intersect at point e. what is the length of be? 4 in 7 in 8 in 14 in

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)