The height of a reservoir (in meters) changes at a rate meters per day

MATHEMATICS · Subjective · AP · Calculus AB · Applications of Integration · Applications of Integration

Problem

The height H(t)H(t) of a reservoir (in meters) changes at a rate H′(t)H'(t) meters per day. During days 0 ⁣≤ ⁣t ⁣≤ ⁣50\!\le\!t\!\le\!5, the average value of H′(t)H'(t) is 0.30.3. During days 5 ⁣< ⁣t ⁣≤ ⁣105\!<\!t\!\le\!10, the average value of H′(t)H'(t) is −0.4-0.4. Without finding exact integrals, identify which five-day interval produces the greater magnitude of net change in height and state that magnitude (in meters).

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