Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°
A. - 
B. - 
C. 
D. - 
Answer: B
Mathematics
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Solve the rational inequality.
< 0
A. (-?, ?) B. (-1, ?) C. No solution D. (-5.35, ?)
Mathematics
Solve the problem.Sales at a certain department store follow the model 
where y is the total sales in thousands of dollars and x is the number of years after 2001. What was the first year that sales fell below 
A. 2,003 B. 2,002 C. 2,000 D. 2,001
Mathematics
Decide whether the given functions are inverses.f = {(3, 36), (4, 49), (5, 64), (6, 81), (7, 100)}g = {(36, 3), (49, 4), (64, 5), (81, 6), (100, 7)}
A. Yes B. No
Mathematics
Solve the problem.Stuart has a balance of -$30 in his bank account. To avoid further charges, he must have a balance of $21. What is the minimum he can deposit to avoid further charges?
A. $51 B. -$9 C. $9 D. -$51
Mathematics