1. Let D = the sales of DVDs in billions of dollars, S = the total sales of streaming videos in billions of dollars, and t = the number of years after 2009. D=−0.92⋅t+8.75D=-0.92⋅t+8.75 S=2.3+0.8⋅tS=2.3+0.8⋅t a. In what year should the DVD sales drop below 1.7 billion? show work b. In what year do the models predict streaming video sales to exceed DVD sales? show work

1. Let D = the sales of DVDs in billions of dollars, S = the total sales of streaming videos in billions of dollars, and t = the number of years after 2009. D=−0.92⋅t+8.75D=-0.92⋅t+8.75 S=2.3+0.8⋅tS=2.3+0.8⋅t a. In what year should the DVD sales drop below 1.7 billion? show work b. In what year do the models predict streaming video sales to exceed DVD sales? show work

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter7: Exponents And Exponential Functions

Section7.8: Transforming Exponential Expressions

Problem 12PFA

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