Find the volume of the solid generated by revolving the region about the given line.The region in the first quadrant bounded above by the line 2x + y = 4, below by the x-axis, and on the left by the y-axis, about the line x = -2
A. 
?
B. 
?
C. 
?
D. 
?
Answer: D
Mathematics
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Solve the polynomial inequality. Express the solution in interval notation.x2 - 4x - 21 ? 0
A. [7, ?) B. [-3, 7] C. (-?, -3] ? [7, ?) D. (-?, -3]
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Simplify:
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Solve the problem.If u = < -3, 5 > and v = < 4, 3 >, evaluate (2u) ? v.
A. 2 B. 6 C. 42 D. 12
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Graph the function.y = 6 sec 
A. 
B. 
C. 
D. 
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