Solve the problem. Round to the nearest tenth unless indicated otherwise.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
src="https://sciemce.com/media/4/ppg__refe0512191816__f1q57g4.jpg" alt="" style="vertical-align: -4.0px;" /> at 
Round your answer to the nearest pound of force.
A. 20,962 lb
B. 21,664 lb
C. 21,126 lb
D. 21,094 lb
Answer: D
Mathematics
src="https://sciemce.com/media/4/ppg__refe0512191816__f1q57g4.jpg" alt="" style="vertical-align: -4.0px;" /> at Round your answer to the nearest pound of force.
A. 20,962 lb
B. 21,664 lb
C. 21,126 lb
D. 21,094 lb
Answer: D
Mathematics
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Use the product rule to simplify the expression. Assume that the variables can be any real number.
A. 4
B. 4
C. 20
D. 4
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Simplify the rational expressions.
A. 1
B. 3
C. 
D. 
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Solve the problem.A manufacturer of custom doors produces y doors per week using x hours of labor per week, where 
How many hours of labor are required to keep production at 15 doors per week? 
A. 12 hr B. 144 hr C. 264 hr D. 352 hr
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Divide and simplify.
÷ 
A. 
B. 
C. 
D. (z + 3)(z - 8)
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