A sample of radioactive material decays over time (measured in hours) with decay constant .2. The graph

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A sample of radioactive material decays over time (measured in hours) with decay constant .2. The graph of the exponential function y = P(t) in Fig. 7 gives the number of grams remaining after t hours.

(a) How much was remaining after 1 hour?

(b) Approximate the half-life of the material.

(c) How fast was the sample decaying after 6 hours?

(d) When was the sample decaying at the rate of .4 grams per hour?

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Calculus And Its Applications

ISBN: 9780134437774

14th Edition

Authors: Larry Goldstein, David Lay, David Schneider, Nakhle Asmar

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