Solve the equation by completing the square.x2 + x +  = 0

A. {- , - }
B. {}
C. {, - }
D. {- }


Answer: A

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 = 2csc x, y = 2 ? x ? 

A. 4?2 + 8? B. ?2 + 4? C. 4?2 - 8? D. 2?2 - 4?

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Solve the problem.Find the volume that remains after a hole of radius 1 is bored through the center of a solid sphere of radius 2. Round to the nearest tenth.

A. 6.9 B. 5.4 C. 65.3 D. 21.8

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Express the number in decimal notation.8.1 × 105

A. 81,000 B. 8,100,000 C. 405 D. 810,000

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Solve the equation for y.6x - 9y = 1

A. y = 6x - 1
B. y = x + 
C. y = x - 
D. y = x + 

Mathematics