Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region bounded by y = 7
, y = 7, and x = 0 about the line y = 7
A. 
?
B. 
?
C. 
?
D. 
?
Answer: B
Mathematics
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Use scientific notation to solve the problem.If the speed of light is 3.00 x 108 m/sec, how long does it take light to travel 2.29 x 1011 m, the distance from the sun to Mars?
A. 76 sec B. 7.6 x 102 min C. 7.6 x 103 sec D. 7.6 x 102 sec
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Evaluate the line integral along the curve C.
ds, C is the curve r(t) = (3 sin 
t)i + (3 cos 
t)j + 12tk, 2 ? t ? 4
A. 
B. 
C. - 
D. 
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Convert the angle in radians to degrees.- 
A. -227° B. -225° C. -224° D. -226°
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Provide an appropriate response.Find the perimeter and area of the rectangle.
A. perimeter: 88 cm; area: 726 sq cm B. perimeter: 363 cm; area: 88 sq cm C. perimeter: 88 cm; area: 363 sq cm D. perimeter: 44 cm; area: 363 sq cm
Mathematics