Establish the identity.cos
= 
cos x - 
sin x
What will be an ideal response?
cos 
= cos x cos 
- sin x sin 
= 
cos x - 
sin x.
Mathematics
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Convert as indicated.32 m to centimeters
A. 3.2 cm B. 320 cm C. 0.32 cm D. 3200 cm
Mathematics
Use the figure to answer the question.The sales figures for the Big "D" Company are shown below in a line graph.Big "D" Sales 
MonthWhich month in 2011 had the lowest sales?
A. Month 3 B. Month 6 C. Month 2 D. Month 8
Mathematics
Simplify. Express your answer in standard form.(3x2 - 10x + 6) - (x2 - 3x + 2) + (8x2 + 5)
A. 10x2 + 7x + 9 B. -6x2 - 13x + 13 C. 10x2 - 7x + 9 D. 10x2 - 7x + 13
Mathematics
Solve the problem.The 7th hole at the Riverwoods Golf Course is 
long. How long would it be on a model with a scale of 
to 
A. 8.92 in. B. 8.49 in. C. 7.62 in. D. 112.5 in.
Mathematics