Solve the problem.The cost in millions of dollars for a company to manufacture x thousand automobiles is given by 
Find the output at the vertex of the parabola (the number of automobiles that must be produced to minimize the cost).
A. 10 thousand automobiles
B. 5 thousand automobiles
C. 20 thousand automobiles
D. 125 thousand automobiles
Answer: B
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What does the abbreviation stand for?qt.
A. quantity B. quart C. quarter D. quiet
Solve the problem.A man borrowed $3000 at 10% interest compounded annually. If he paid off the loan in full at the end of 5 years, how much did he pay?
A. $1831.53 B. $4500.00 C. $4831.53 D. $3300.00
Use transformations of the graphs of y = x2 or y = |x| to sketch a graph of f by hand.f(x) = 5x2 + 5 
A. 
B. 
C. 
D. 
Solve the problem.At an altitude of h feet above the surface of the earth, the approximate distance in miles that a person can see is given by 
How far can a person see if he or she is 1080 feet above the earth's surface? Round your answer to the nearest tenth of a mile, if necessary.
A. 45.9 miles B. 40.2 miles C. 42.6 miles D. 41.3 miles