Solve the problem.The cost, in millions of dollars, for a company to manufacture x thousand automobiles is given by the function 
Find the number of automobiles that must be produced to minimize cost.
A. 45 thousand automobiles
B. 3 thousand automobiles
C. 9 thousand automobiles
D. 6 thousand automobiles
Answer: B
Mathematics
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State whether you think the difference between what occurred and what you would expect by chance is statistically significant.In nine out of the last ten years, the stock market has gone up.
A. Statistically significant B. Not statistically significant
Mathematics
Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the integral.
A. 
B. 2
C. 2
D. 
Mathematics
Evaluate the expression.
A. 
B. 
C. 
D. 
Mathematics