Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.- 
+ 
A. - 
B. - 1
C. - 
D. - 
Answer: D
Mathematics
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Evaluate the expression.
?
Fill in the blank(s) with the appropriate word(s).
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Change the polar coordinates (r, ?) to rectangular coordinates (x, y).(9, 330°)
A. 
B. 
C. 
D. 
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Express as the logarithm of a single expression. Assume that variables represent positive numbers.log716 +log75 - log720
A. log74
B. log7
C. log7
D. log71
Mathematics
Evaluate.cos 
A. -1
B. 0
C. 1
D. 
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