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Electronic cigarette sales have grown approximately exponentially from 0.07 million units in 2007 to 2.2 million units in 2012. Each unit has three parts: battery, charger, and nicotine-containing cartridge. Let f(t), where t is the number of years since 2007, be the exponential function that models the growth. Predict in which year sales will reach 1.561 billion units. Sales will reach 1.561 billion in (Round down to the nearest integer. Round all intermediate values to the nearest hundredth as needed.)

Electronic cigarette sales have grown approximately exponentially from 0.07 million units in 2007 to 2.2 million units in 2012. Each unit has three parts: battery, charger, and nicotine-containing cartridge. Let f(t), where t is the number of years since 2007, be the exponential function that models the growth. Predict in which year sales will reach 1.561 billion units. Sales will reach 1.561 billion in (Round down to the nearest integer. Round all intermediate values to the nearest hundredth as needed.)

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.2: Exponential Functions
Problem 78E
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Electronic cigarette sales have grown approximately exponentially from 0.07 million units in 2007 to 2.2 million units in 2012. Each unit has three parts: battery, charger, and nicotine-containing cartridge. Let f(t), where t is the number of years since 2007, be the exponential function that models the growth. Predict in which year sales will reach 1.561 billion units. Sales will reach 1.561 billion in (Round down to the nearest integer. Round all intermediate values to the nearest hundredth as needed.)
Transcribed Image Text:Electronic cigarette sales have grown approximately exponentially from 0.07 million units in 2007 to 2.2 million units in 2012. Each unit has three parts: battery, charger, and nicotine-containing cartridge. Let f(t), where t is the number of years since 2007, be the exponential function that models the growth. Predict in which year sales will reach 1.561 billion units. Sales will reach 1.561 billion in (Round down to the nearest integer. Round all intermediate values to the nearest hundredth as needed.)
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