Mathematics, 16.11.2019 08:31 michelleperezmp58
In 2006, there was approximately 233 million cell phone subscribers in the united states. during the next 4 years, the number of cell phone subscribers increased by 6% each year.
a. write an exponential growth model giving the number of cell phone subscribers y (in millions) t years after 2006. estimate the number of cell phone subscribers in 2008.
b. estimate the year when the number of cell phone subscribers was about 278 million.
Answers: 3
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