Question: When data from a traffic study are fitted to a curve, the flow rate of cars past a point on a highway is approximated by

When data from a traffic study are fitted to a curve, the flow rate of cars past a point on a highway is approximated by R(t) = 800te^-t/2 cars/hr. How many cars pass the measuring site during the time interval 0 ≤ t ≤ 4?

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