Mathematics, 26.08.2020 02:01, phancharamachasm

A tank holds 3,000 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. t (min)51015202530
V (gal)2,0761,296795351780
(a) If P is the point (15, 795) on the graph of V, find the slopes of the secant lines PQ when Q is the point on the graph with t = 5, 10, 20, 25, and 30. (Round your answers to one decimal place.)
Q slope
(5, 2,076)
(10, 1,296)
(20, 351)
(25, 78)
(30, 0)
(b) Estimate the slope of the tangent line at P by averaging the slopes of the two adjacent secant lines corresponding to the two points closest to P. (Round your answer to one decimal place.)

Answers: 3

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A tank holds 3,000 gallons of water, which drains from the bottom of the tank in half an hour. The v...