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4. The number of smartphone users and penetration in the United States continues to grow steadily. The number of users (in millions) from 2011 through 2015 is projected to grow at the rate of R(t) = 14.3 (0

4. The number of smartphone users and penetration in the United States continues to grow steadily. The number of users (in millions) from 2011 through 2015 is projected to grow at the rate of R(t) = 14.3 (0

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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4. The number of smartphone users and penetration in the United States continues to grow steadily. The number of users (in millions) from 2011 through 2015 is projected to grow at the rate of R(t) = 14.3 (0 <t< 4) million/year. The number of users in 2011 (t = 0) was 90.1 million. Find an expression giving the projected number of smartphone users in year t. What is the estimated number of smartphone users in 2015?
Transcribed Image Text:4. The number of smartphone users and penetration in the United States continues to grow steadily. The number of users (in millions) from 2011 through 2015 is projected to grow at the rate of R(t) = 14.3 (0 <t< 4) million/year. The number of users in 2011 (t = 0) was 90.1 million. Find an expression giving the projected number of smartphone users in year t. What is the estimated number of smartphone users in 2015?
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