The following table shows the number C, in millions, of cars sold in the U.S. t years after 2005. Use linear regression to model C as a function of t.
?
t 0 1 3 5 C 5.55 5.41 5.28 4.54?
?
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Determine whether the argument is valid or invalid.Sam plays tennis or George is not a man. If George is not a man, then Betsy does not win the award. Betsy wins the award. Therefore, Sam does not play tennis.
A. Invalid B. Valid
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A. loga D - loga K B. loga D ÷ loga K C. loga (D - K) D. loga K - loga D
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Solve the problem.The polynomial function L(p) = p3 - 5p2 + 20 gives the rate of gas leakage from a tank as pressure increases p units from its initial setting. Will an increase of 3 units result in a lower rate of leakage compared to the initial setting?
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Mathematics