Energy consumption in a particular country in quadrillion BTUS can be modeled by C(x)= -0.014x +1.295x + 68.958, where x is the number of years after 1970. a. One solution to the equation 89. 258 = -0.014x + 1.295x + 68.958 is x= 20. What does this mean? b. Graphically verify that x= 20 is a solution to 89.258 = -0.014x +1.295x+ 68.958. c. To find when after 2020 the energy consumption in that country will be 89.258 quadrillion BTUS according to the model, is there a need to find the second solution to this equation? Why or why not? a. Choose the correct answer below. O A. In 1990, consumption was 68.958 quadrillion BTUS. O B. In 2020, consumption was 68.958 quadrillion BTUS. O C. In 1990, consumption was 89.258 quadrillion BTUS. O D. In 2020, consumption was 89 258 quadrilion BTUS.

Energy consumption in a particular country in quadrillion BTUS can be modeled by C(x)= -0.014x +1.295x + 68.958, where x is the number of years after 1970. a. One solution to the equation 89. 258 = -0.014x + 1.295x + 68.958 is x= 20. What does this mean? b. Graphically verify that x= 20 is a solution to 89.258 = -0.014x +1.295x+ 68.958. c. To find when after 2020 the energy consumption in that country will be 89.258 quadrillion BTUS according to the model, is there a need to find the second solution to this equation? Why or why not? a. Choose the correct answer below. O A. In 1990, consumption was 68.958 quadrillion BTUS. O B. In 2020, consumption was 68.958 quadrillion BTUS. O C. In 1990, consumption was 89.258 quadrillion BTUS. O D. In 2020, consumption was 89 258 quadrilion BTUS.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter5: Inverse, Exponential, And Logarithmic Functions

Section5.6: Exponential And Logarithmic Equations

Problem 64E

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