Use the given triangles to evaluate the expression. Rationalize all denominators. 
sec 
- cos 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 
, y = 0, x = 1, x = 9
A. ?ln 9
B. 
?
C. 
?
D. 
?
Mathematics
Reduce the fraction by finding a common factor in the numerator and in the denominator and dividing by the common factor.
A. 
B. 
C. 
D. 
Mathematics
Use identities to find the indicated value for each angle measure.cos ? = 
, sin ? < 0
Find sin(2?).
A. 
B. 
C. - 
D. - 
Mathematics
Solve the problem.It took three assembly-line workers 3.78 seconds, 6.058 seconds, and 7.2 seconds to assemble a product. How many seconds in all did they work?
A. 9.478 sec B. 10.98 sec C. 9.838 sec D. 17.038 sec
Mathematics