Find the exact value of the expression.sin
A. - 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the missing factor in the numerator such that the two fractions are equivalent.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Simplify the expression.cos 8x cos 4x + sin 8x sin 4x
A. cos 12x B. sin 4x C. cos 4x D. sin 12x
Mathematics
Evaluate. The differential is exact.
A. 1 B. 8 C. 7 D. 5
Mathematics
Solve the problem.Ron takes two hr more time than Paul to mow the lawn. Working together they can mow the lawn in 
. How long does it take each of them working alone? Round to the nearest tenth, if necessary.
A. Paul: 8 hr; Ron: 10 hr B. Paul: 10 hr; Ron: 12 hr C. Paul: 8.3 hr; Ron: 10.3 hr D. Paul: 9.1 hr; Ron: 11.1 hr
Mathematics