help plz A tank holds 3000 gallons of water, which drains from the bottom of the
ID: 2987130 • Letter: H
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help plz
A tank holds 3000 gallons of water, which drains from the bottom of the tank in half an hour. The values in the table show the volume v of water remaining in the tank (in gallons) after t minutes. If P is the point (15, 720) on the graph of V, find the slopes of the secant lines PQ when Q is the point on the graph with the following values. (Round your answers to one decimal place.) Estimate the slope of the tangent line at P by averaging the slopes of two adjacent secant lines. (Round your answer to one decimal place.) If P is the point (15, 720) on the graph of V, find the slopes of the secant lines PQ when Q is the point on the graph with the following values. (Round your answers to one decimal place.) Estimate the slope of the tangent line at P by averaging the slopes of two adjacent secant lines. (Round your answer to one decimal place.)Explanation / Answer
1)slope = (2052-720)/(5-15)= -133.2
2)slope = (1320-720)/(10-15)= -120
3)slope = (312-720)/(20-15)= -81.6
4)slope = (75-720)/(25-15)= -64.5
5)slope = (0-720)/(30-15)= -48
part b) (-120+-81.6)/2 = -100.8 IS ANSWER.
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