Multiply.(10 - 11r)(10 + 11r)
A. 100 - 220r - 121r2
B. 100 - 121r2
C. 100 - 11r2
D. 100 + 220r - 121r2
Answer: B
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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 y-axis.y = 3x2, y = 3
A. 
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B. 
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C. 
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D. 
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Solve.The force needed to keep a car from skidding on a curve varies jointly as the weight of the car and the square of the car's speed, and inversely as the radius of the curve. If a force of 
is needed to keep an 
car traveling at 20 mph from skidding on a curve of radius 
what force would be required to keep the same car from skidding on a curve of radius 
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Round your answer to the nearest pound of force?
A. 13,582 lb
B. 14,284 lb
C. 13,714 lb
D. 13,746 lb
Write using radical notation. Then, simplify, if possible.x1/5 ? x4/5
A. x4/5 B. x4/25 C. x-1 D. x
Establish the identity.tan2x = sec2x - sin2x - cos2x
What will be an ideal response?