Nisha has invited a group of friends over for a spaghetti dinner. There will be eight people dining, and Nisha would like to prepare 1 1/2 cups of cooked spaghetti per person. How many 16 oz. packages of dry spaghetti must Nisha use, and in how much water should she cook the pasta? Remember, it takes 4 oz. of dry spaghetti to produce 2 cups of cooked spaghetti, and each 4 oz. of dry spaghetti requires 1 quart of water.

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)