Find all numbers that must be excluded from the domain of the rational expression.
A. x ? 36
B. x ? 6
C. x ? -5
D. x ? 6, x ? -6
Answer: D
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Find all possible functions with the given derivative.r' = 6 + 
A. r = 6? - 
B. r = 6? - ?4
C. r = 6? + 
D. r = 6? + ?3
Determine whether the relation represents a function. If it is a function, state the domain and range.
A. function domain: {3, 8, 13, 18} range: {15, 40, 65, 90} B. function domain:{15, 40, 65, 90} range: {3, 8, 13, 18} C. not a function
Solve the problem.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. 30,857 lb
B. 31,427 lb
C. 30,725 lb
D. 30,889 lb
Solve the problem.An SUV weighing 4,400 pounds is parked on a street which has an incline of 
Find the force required to keep the SUV from rolling down the hill and the force of the SUV perpendicular to the hill. Round the forces to the nearest hundredth.
A. 839.56 lb and 4,319.16 lb B. 1,138.80 lb and 4,250.07 lb C. 1,432.50 lb and 4,160.28 lb D. 569.40 lb and 2,125.04 lb