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OpenStudy (anonymous):
Suppose that y = 21(1.07)x, represents book sales in billions of dollars since 2000. X represents the number of years after 2000. How many billions of dollars of books were sold in 2000? Use x = 0 and round the answer to the nearest whole number. Answer $21 billion $1.07 billion $22.47 billion $42 billion
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OpenStudy (anonymous):
@jim_thompson5910
jimthompson5910 (jim_thompson5910):
Plug in x = 0 and evaluate to find y
OpenStudy (anonymous):
I got 22.47
jimthompson5910 (jim_thompson5910):
y = 21(1.07)^x y = 21(1.07)^0 y = ????
OpenStudy (anonymous):
21 billion
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jimthompson5910 (jim_thompson5910):
correct
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