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The following table shows the number of cell phone subscriptions in a country in billions for selected years x after 2005. 2006 1.3 X y 2005 0.3 2007 4.0 2008 7.5 2009 9.2 (a) Find a function C(x) that models the data, where x is years after 2005. (b) Predict the number of cell phone subscriptions in 2012. 2010 9.8 (a) Select the correct choice below and fill in the answer boxes within your choice. (Round to two decimal places as needed.) OA. The best model for the data is a logarithmic function and is given by f(x) = OB. The best model for the data is an exponential function and is given by f(x) = OC. The best model for the data is a logistic function and is given by f(x) = 1+ (b) In the year 2012, the number of cell phone subscriptions will be about billion. + In x. (*. e

The following table shows the number of cell phone subscriptions in a country in billions for selected years x after 2005. 2006 1.3 X y 2005 0.3 2007 4.0 2008 7.5 2009 9.2 (a) Find a function C(x) that models the data, where x is years after 2005. (b) Predict the number of cell phone subscriptions in 2012. 2010 9.8 (a) Select the correct choice below and fill in the answer boxes within your choice. (Round to two decimal places as needed.) OA. The best model for the data is a logarithmic function and is given by f(x) = OB. The best model for the data is an exponential function and is given by f(x) = OC. The best model for the data is a logistic function and is given by f(x) = 1+ (b) In the year 2012, the number of cell phone subscriptions will be about billion. + In x. (*. e

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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The following table shows the number of cell phone subscriptions in a country in billions for selected years x after 2005. 2005 2006 1.3 0.3 x y 2007 4.0 2008 7.5 2009 9.2 (a) Find a function C(x) that models the data, where x is years after 2005. (b) Predict the number of cell phone subscriptions in 2012. 2010 9.8 (a) Select the correct choice below and fill in the answer boxes within your choice. (Round to two decimal places as needed.) In x. O A. The best model for the data is a logarithmic function and is given by f(x) = OB. The best model for the data is an exponential function and is given by f(x) = (*. (x OC. The best model for the data is a logistic function and is given by f(x) = 1+ (b) In the year 2012, the number of cell phone subscriptions will be about (Round to two decimal places as needed.) billion. +
Transcribed Image Text:The following table shows the number of cell phone subscriptions in a country in billions for selected years x after 2005. 2005 2006 1.3 0.3 x y 2007 4.0 2008 7.5 2009 9.2 (a) Find a function C(x) that models the data, where x is years after 2005. (b) Predict the number of cell phone subscriptions in 2012. 2010 9.8 (a) Select the correct choice below and fill in the answer boxes within your choice. (Round to two decimal places as needed.) In x. O A. The best model for the data is a logarithmic function and is given by f(x) = OB. The best model for the data is an exponential function and is given by f(x) = (*. (x OC. The best model for the data is a logistic function and is given by f(x) = 1+ (b) In the year 2012, the number of cell phone subscriptions will be about (Round to two decimal places as needed.) billion. +
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