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 problem.The temperature at 5 p.m. on January 27 was -5° Fahrenheit. By 8 p.m. the temperature had risen 25 degrees. Find the temperature at 8 p.m.
A. 20°F B. -30°F C. 30°F D. -20°F
Mathematics
Multiply or divide as indicated.
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A. 
B. 
C. 
D. 
Mathematics
If the integral converges, compute its value.
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?
A. 
B. 
C. 
D. 
E. diverges
Mathematics
Perform the indicated operation and, if possible, simplify.
÷ 
A. 
B. 
C. 
D. 
Mathematics