Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: C
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Graph the system of linear inequalities.x - y ? -1x + 2y ? 5y ? 5
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 
style="vertical-align: -4.0px;" /> at 
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
Divide and reduce to lowest terms.
÷ 
A. 
B. 
C. 
D. 
List the intercepts of the graph. 
A. (4, 0), (0, -4), (0, 1), (0, 5) B. (-4, 0), (1, 0), (5, 0), (0, 4) C. (4, 0), (0, 4), (0, 1), (0, -5) D. (4, 0), (1, 0) (-5, 0), (0, 4)