Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the x-axis.y = 3x, y = 6x, y = 3
A. 
?
B. 9?
C. 
?
D. 3?
Answer: D
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Solve the problem.You want to make an angle measuring 150° by marking an arc on the perimeter of a disk with a diameter of 8 inches and drawing lines from the ends of the arc to the disk's center. To the nearest tenth of an inch, how long should the arc be?
A. 10.5 in. B. 5.2 in. C. 41.9 in. D. 20.9 in.
Use Stokes' Theorem to calculate the circulation of the field F around the curve C in the indicated direction.F = x2i + xyj + yk; C: the counterclockwise path around the perimeter of the rectangle in the x-y plane formed from the x-axis, y-axis , x = 5 and y = 11
A. 605
B. 
C. - 
D. -605
Convert the units.8.1 kg = 
g
A. 0.0081 g B. 0.00081 g C. 810 g D. 8100 g
Solve the inequality. Express your answer in set notation.x2 < 4
A. {x| -2 ? x ? 2} B. {x| x < -2 or x > 2} C. {x| x < 2} D. {x| 2 < x < 2}