Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the . y = , y = 1, x = 0 to x = 

A.  + ?
B.  - 
C.  - 
D.  - ?


Answer: B

Mathematics

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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = ?/6 to x = ?/2. The cross sections perpendicular to the x-axis are circular disks with diameters running from the curve  to the curve 

A.  - 
B. ( - 1) ? + 
C.  - 
D. (2 - 2) ? - 

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Solve the problem.Where does the graph of the function  f(x) = 4x3 + 4x2 - 4x - 4cross the x-axis?

A. -1, 1 B. -1 C. -1, 1, -1 D. 1, -1

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Estimate the difference by rounding to one non-zero digit.61 - 16

A. 40 B. 80 C. 45 D. 50

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Simplify the rational expression. If the expression is already in simplest form, state this as your answer.

A.  
B.  
C.  
D.

Mathematics