Simplify the rational expression. If the expression is already in simplest form, state this as your answer.
A. 7x2 - 17
B. 7x - 5
C. 
D. simplest form
Answer: B
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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 0 for r(t) = t2i + (10t3 - 6)j + 
k
A. a(0) = 2i - 
k
B. a(0) = 2i - 
k
C. a(0) = 2i - 
k
D. a(0) = 2i + 
k
Answer the following question involving a conversion within the USCS system.How many quarts are in 54 barrels of water?
A. 1674 qt B. 2268 qt C. 6696 qt D. 9072 qt
Solve the problem.What is the ratio of the surface areas for a pair of spheres when the ratio of the radii is 3:2?
A. 3 : 2 B. 9 : 4 C. 27 : 8 D. Not enough information given
State the practical meaning of the slope and vertical intercept in the given situation.The cost, in dollars, of a one-day car rental is given by 
where x is the number of miles driven.
A. $35 is the cost per day to rent the car and $0.22 is the cost per mile. B. $22 is the cost per day to rent the car and $0.35 is the cost per mile. C. $35 is the cost per day to rent the car and $22 is the extra cost for unlimited miles. D. $0.22 is the cost per day to rent the car and $35 is the cost per mile.