Simplify the complex fraction.

A.
B.
C.
D.


Answer: D

Mathematics

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Find the volume of the solid generated by revolving the region about the given line.The region bounded above by the line , below by the curve , on the left by the line , and on the right by the line x = 0.5, about the line 

A. 2? B. 6? - 16 C. 6? D. 12? - 8

Mathematics

Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?

A. $300,000 B. $360,000 C. $60,000 D. $218,400

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Use a calculator to estimate the limit.

A. 0 B. Does not exist C. 4 D. 2

Mathematics

Find the domain of the function.f(x) = 

A. , or  ?  
B. , or (-?, -4) ?  ? 
C. , or  ?  ? (4, ?)
D. {x| x ? 4}, or (-?, 4) ? (4, ?)

Mathematics