On the box of a new computer monitor, it states that the diagonal distance across the screen is 19 inches. If the screen measures 10 inches in height, what is the actual width of the screen to the nearest tenth of an inch? 14. 8 inches 17.6 inches 16.1 inches 12.3 inches

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 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)