The approximate rate of change in the number (in billions) of monthly text messages is given by

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The approximate rate of change in the number (in billions) of monthly text messages is given by f´(t) = 7.50t – 16.8, where t represents the number of years since 2000. In 2005 (t = 5) there were approximately 9.8 billion monthly text messages.

a. Find the function that gives the total number (in billions) of monthly text messages in year t.

b. According to this function, how many monthly text messages were there in 2009? Compare this with the actual number of 152.7 billion.

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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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Question Posted: Aug 20, 2023 07:39 AM

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The approximate rate of change in the number (in billions) of monthly text messages is given by

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a To find the function that gives the total number of monthly text messages in year t we need to int...View the full answer

Calculus With Applications

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