An endurance athlete exercising for more than one hour should consider replenishing fluids with an electrolyte drink. a popular serving size bottle of a drink such as gatorade® has four eight-ounce (1-cup) servings per bottle. if there are 50 kcal per cup, how many kcal are in the whole bottle?

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)