Find the greatest common factor of the terms.21m4, 189m7, 441m5
A. 3969m3
B. 21m4
C. 189m4
D. 21m3
Answer: B
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Write the expression in simplest form. If a radical appears in the denominator, rationalize the denominator.
A. 
B. 
C. 
D. 
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. 16,279 lb
B. 15,577 lb
C. 15,709 lb
D. 15,741 lb
Solve the problem.If the force acting on an object stays the same, then the acceleration of the object is inversely proportional to its mass. If an object with a mass of 40 kilograms accelerates at a rate of 
per second per second by a force, find the rate of acceleration of an object with a mass of 
that is pulled by the same force.
A. 
meters per second per second
B. 36 meters per second per second
C. 40 meters per second per second
D. 45 meters per second per second
Use a formula to solve the problem.A circle has a circumference of 58? meters. Find the radius of the circle.
A. 29 m B. 58 m C. 9 m D. 15 m