After the introduction of a new product for tanning without sun exposure, the percent of the public

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After the introduction of a new product for tanning without sun exposure, the percent of the public that is aware of the product is approximated by A(t) = 10t22–t, where t is the time in months. Find the rate of change of the percent of the public that is aware of the product after the following numbers of months.

a. 2 

b. 4

c. Notice that the answer to part a is positive and the answer to part b is negative. What does this tell you about how public awareness of the product has changed?

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Calculus With Applications

ISBN: 9780321831101

10th Edition

Authors: Margaret L Lial, Raymond N Greenwell, Nathan P Ritchey

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