Evaluate the rational expression for the given value(s) of the variable(s).
for x = -9
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Determine the sign of the trigonometric function.cos 345°
A. Negative B. Positive
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Simplify using the order of operations.(-4 - 8)(-4 + 2) - 42
A. 16 B. 8 C. 40 D. -2
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Solve the problem.Find the center and the scale factor of the dilation shown below.
A. Center S; scale factor 1/3 B. Center R; scale factor 3 C. Center R; scale factor 1/3 D. Center S; scale factor 3
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Find the exact value under the given conditions.sin ? = 
, 
< ? < ?; cos ? = 
, 0 < ? < 
Find sin (? - ?).
A. - 
B. 
C. 
D. 
Mathematics