Find the exact value of the expression.sin 20° cos 100° + cos 20° sin 100°
A. 
B. 
C. - 
D. - 
Answer: B
Mathematics
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Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics
Multiply or divide as indicated.
A. 541.12 B. 540.02 C. 93.3 D. 540.13
Mathematics
Solve the problem.The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches: 
What rainfall produces the maximum number of mosquitoes?
A. 64 in. B. 0 in. C. 8 in. D. 4 in.
Mathematics
Solve the problem. Round your answer to three decimals.What annual rate of interest is required to double an investment in 6 years?
A. 6.123% B. 12.246% C. 11.552% D. 20.094%
Mathematics