Acar dealership sold 78 new cars and 67 used cars this year. the number of new cars sold by the dealership has be increasing by 6 cars each year. the number of used cars sold by the dealership has been decreasing by 4 cars each year. if these trends continue, in how many years will the number of new cars sold be twice the number of used cars sold?

Estimate the product. round the first factor to the nearest whole number, round the second factor to the nearest ten, and then multiply. 3 8/9 × 96

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)

Which of the following graphs could represent a quartic function?