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College Algebra in Context with Applications for the Managerial, Life, and Social Sciences 3rd Edition by Ronald J Harshbarger, Lisa Yocco
Edition 3ISBN: 032157060XCollege Algebra in Context with Applications for the Managerial, Life, and Social Sciences 3rd Edition by Ronald J Harshbarger, Lisa Yocco
Edition 3ISBN: 032157060X Exercise 72
Step-by-step solution
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Step 1 of 3
Consider the equation
Where x the number of years after 1990 and y the number of cellphone subscribers in thousands.
(a) Put
into the equation
and solve the quadratic equation to find the year in which the cellphone subscribers become 288,661,199.
Hence the number of cellphone subscribers will be 288,661,199 after 18 years since 1990.
Step 2 of 3
Step 3 of 3
College Algebra in Context with Applications for the Managerial, Life, and Social Sciences 3rd Edition by Ronald J Harshbarger, Lisa Yocco
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