The temperature of a city was -12 degrees fahrenheit in the morning. the temperature rose by 4 degrees fahrenheit in the afternoon.

what is the temperature of the city in the afternoon?

c =
º f =

if the temperature drops by 8 degrees fahrenheit at night, find the temperature at night.

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)