The world population was 6.9 billion at the end of 2010 and is predicted to reach 9 billion by the end of 2050.2 (a) Assuming the population is growing exponentially, what is the continuous growth rate per year? Round your answer to three decimal places. The continuous growth rate per year is i (b) The United Nations celebrated the "Day of 6 Billion" on July 12, 1999, and the "Day of 7 Billion" on October 31, 2011. Using the growth rate in part (a), when is the "Day of 8 Billion" predicted to be? Enter the answer in the form month, day, year. The "Day of 8 Billion" is predicted to be

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Author:James Stewart
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Chapter1: Functions And Models
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The world population was 6.9 billion at the end of 2010 and is predicted to reach 9 billion by the end of 2050.
(a) Assuming the population is growing exponentially, what is the continuous growth rate per year?
Round your answer to three decimal places.
The continuous growth rate per year is
i
%.
(b) The United Nations celebrated the "Day of 6 Billion" on July 12, 1999, and the "Day of 7 Billion" on October 31, 2011. Using the
growth rate in part (a), when is the "Day of 8 Billion" predicted to be?
Enter the answer in the form month, day, year.
The "Day of 8 Billion" is predicted to be
i
i
Transcribed Image Text:The world population was 6.9 billion at the end of 2010 and is predicted to reach 9 billion by the end of 2050. (a) Assuming the population is growing exponentially, what is the continuous growth rate per year? Round your answer to three decimal places. The continuous growth rate per year is i %. (b) The United Nations celebrated the "Day of 6 Billion" on July 12, 1999, and the "Day of 7 Billion" on October 31, 2011. Using the growth rate in part (a), when is the "Day of 8 Billion" predicted to be? Enter the answer in the form month, day, year. The "Day of 8 Billion" is predicted to be i i
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