Simplify the expression by combining like terms.9a - 5a - a - 14
A. 4a - a - 14
B. 3a - 14
C. 4a - 14
D. 4a - 15
Answer: B
Mathematics
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Sketch the graph of the parametric equations. Then set up the appropriate integral to find the length of the curve and use a computer to evaluate it.x = 2 sin t, y = 2 cos t, 0 ? t ? 2?
A. L = 5?
B. L = 5?
C. L = 2?
D. L = 4?
Mathematics
Find the area.
A. 392 m2 B. 1316 m2 C. 658 m2 D. 476 m2
Mathematics
Use the pictograph to answer the question.This pictograph shows projected sales of compact disks (CDs) for a popular rock band for seven consecutive years. 
? = 100,000 CDsApproximately how many CDs will be sold in 2007?
A. 900,000 CDs B. 600,000 CDs C. 60,000 CDs D. 6 CDs
Mathematics
Solve the problem.If cos 2? = - 
, and 
< 2? < ?, then find sin ?.
A. 
B. - 
C. - 
D. 
Mathematics