Circulation of Daily Newspapers. In 1985, the circulation of daily newspapers reached its highest level (Newspaper Association

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Circulation of Daily Newspapers. In 1985, the circulation of daily newspapers reached its
highest level (Newspaper Association of America). The quartic function
f (x) = -0.006093x4 + 0.849362x3
- 51.892087x2 + 1627.3581x
+ 41,334.7289,
Where x is the number of years since 1940, can be used to estimate the circulation of daily newspapers, in thousands, from 1940 to 2008. Using this function, estimate the circulation of daily news-papers in 1945, in 1985, and in 2008.
Circulation of Daily Newspapers. In 1985, the circulation of daily
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College Algebra Graphs and Models

ISBN: 978-0321845405

5th edition

Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna

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