Express as a sum of logarithms.log2(4 ? 8)
A. log24 + log28
B. log42 + log82
C. log22 + log23
D. log24 + log28 + log22
Answer: A
Mathematics
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Factor by grouping.x3 + 2x + x2 + 2
A. (x2 + 1)(x + 2) B. (x2 + 2)(x + 1) C. (x2 + 1)(2x + 1) D. (2x + 1)(x + 1)
Mathematics
The rectangular coordinates of a point are given. Express the point in polar coordinates with 
and 
(-2, 0)
A. (2, 90°) B. (-2, 180°) C. (2, 180°) D. (2, 270°)
Mathematics
Graph the function and y = cos x in the same rectangular system for 0 ? x ? 2?.y = 3 cos x
A. 
B. 
C. 
D. 
Mathematics
Find the difference of price on ice cream in 2013. March 2013 June 2013 Price$3.80$3.36
Fill in the blank(s) with the appropriate word(s).
Mathematics