Convert the expression.
?
?
A. 2 cosb
B. ?cos 2b
C. ??cos b
D. 2 ?cos 2b
E. ?4 cos b
Answer: B
Mathematics
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Find the rate of change of surface area with respect to radius when the radius is 
(Answer can be left in terms of ?).
A. 50.24? mm2/mm B. 50.12? mm2/mm C. 100.0? mm2/mm D. 100.24? mm2/mm
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Perform the indicated operation by hand.30.73 - 25
A. 5.83 B. 5.73 C. -5.73 D. 55.73
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Multiply the rational expressions. Simplify, if necessary.
? 
A. 
B. 
C. 
D. 
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Graph the function.f(x) = 
A. 
B. 
C. 
D. 
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