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# Get answer: A tank holds 1000 gallons of water, which drains from the bottom of the tank ISBN: 9781305270336 484

## Solution for problem 1 Chapter 2.1

Single Variable Calculus: Early Transcendentals | 8th Edition

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Problem 1

A tank holds 1000 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 smind 5 10 15 20 25 30 V sgald 694 444 250 111 28 0 (a) If P is the point s15, 250d 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. (b) Estimate the slope of the tangent line at P by averaging the slopes of two secant lines. (c) Use a graph of the function to estimate the slope of the tangent line at P. (This slope represents the rate at which the water is flowing from the tank after 15 minutes.)

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Water & Minerals Water • 60% of adult body weight o higher in children • 75% lean tissue, 25% fat • less % water in females, obese, older **Functions • carry nutrients, waste products...

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##### ISBN: 9781305270336

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