Solve the problem.The median prices of townhomes in City X from 2002 to 2012 can be approximated by  where  corresponds to 2002 and  corresponds to 2012. Estimate the years when the median price range was from $68,000 to $73,000.

A. Between 2003 and 2004
B. Between 2005 and 2006
C. Between 2007 and 2008
D. Between 2010 and 2011


Answer: B

Mathematics

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A. (-2, 4); x = 2; maximum: -4 B. (-4, -2); x = -4; maximum: 2 C. (-4, 2); x = -4; maximum: 2 D. (2, -4); x = 2; maximum: -4

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A. 360 days B. 84 days C. 144 days D. 42 days

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Find a general term an for the geometric sequence.a1 = 2 and r = 2

A. an= 2 + 2(n - 1)  B. an = 2(2)n-1 C. an =2(2)(n-1)  D. an = 2(n-1) + 1

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Use the product rule to simplify the expression. Assume that the variables can be any real number.

A. - 2a2
B. 2ab 
C. 2 
D. 2ab 

Mathematics