Express the sum or difference as a product of sines and/or cosines.sin 
+ sin 
A. 2 cos(7?) sin ?
B. 2 sin(7?)
C. 2 sin 
sin ?
D. 2 sin 
cos ?
Answer: D
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Answer the given question.In which quadrants might the given point (x, y) may lie when xy > 0.
A. I or II B. II or IV C. I or III D. II or III
Find the first four terms of the binomial series for the given function.(1 + 3x)1/2
A. 1 + 
x - 
x2 + 
x3
B. 1 - 
x + 
x2 - 
x3
C. 1 - 
x + 
x2 - 
x3
D. 1 + 
x - 
x2 + 
x3
Use the check register find the ending balance.The Flower Shoppe had a balance of src="https://sciemce.com/media/4/ppg__tttt0616190858__f1q35g6.jpg" alt="" style="vertical-align: -4.0px;" /> she wrote two payroll checks: 
in its business checking account on 
The manager made a deposit on the same day for 
and wrote check 
to Illinois Power for 
Then on 
to Margaret Flores for 
and 
to Henry Baker for 
On 
she made a 
cash deposit. Record the checks and deposits in The Flower Shoppe's check register, and then find the ending balance.
A. $2002.54
B. $1079.15
C. $2013.26
D. $2753.72
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. 
? = 1000 CDsIn which year will the greatest number of CDs be sold?
A. 2013 B. Not enough information is given. C. 2010 D. 2008