Posted by **Destinyyy** on Sunday, February 13, 2011 at 8:28pm.

A traffic engineer monitors the rate at which cars enter a freeway onramp during rush hour. From her data, she estimates that between 4:30 pm and 5:30 pm, the rate R(t) at which cars enter is given by:

R(t)=100(1-0.00012t^2)

cars per minute, where t is time in minutes since 4:30 pm.

A) find the average rate in cars per minute, at which cars enter the highway during the first half hour.

B) find the average rate, in cars per minute, at which cars enter the highway during the second half hour.

C) find the total number of cars that enter the highway during that hour.

D) cars also exit the freeway at a rate of:

E(t)=50(1-e^-t)

find the total number of cars on the highway for the first 30 minutes. Assume no cars initially.

- AP Calculus AB -
**Anonymous**, Thursday, February 11, 2016 at 2:42am
.

## Answer This Question

## Related Questions

- Ap calc - A traffic engineer monitors the rate at which cars enter a freeway ...
- math - During rush hour, Fernando can drive 20 miles using the side roads in the...
- algebra - During rush hour, Bill can drive 60 miles using the side roads in the ...
- math,algebra - can someone just set up the equations for me for this problem. ...
- Math - The population of New York doubles during the workday. At the end of the ...
- Calculus - Transportation engineers use traffic flow data to design the timing ...
- Math - Which of the following statements describe an exponential relationship? ...
- help,math - can some set the equation up for me. Science and medicine. A plane ...
- 6th grade - hi I am trying to help my daughter do her homework I don't have the ...
- Algebra Help - A motorist was to travel from town A to town B, a distance of 80 ...

More Related Questions