Solve the problem.The cost for a company to manufacture automobiles can be approximated by the following quadratic equation 
where c represents the cost, in millions of dollars, and x represents the number of automobiles, in thousands. Determine the number of automobiles that minimizes cost by finding 
A. 3000 automobiles
B. 9000 automobiles
C. 81,000 automobiles
D. 5000 automobiles
Answer: A
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Solve the problem.The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. If 
when 
and 
what is the volume when 
and 
A. 320 in3 B. 360 in3 C. 330 in3 D. 290 in3
Give a verbal representation of f(x).f(x) = 4x - 3
A. Multiply the input x by 3 and then subtract 4 to obtain the output y. B. Multiply the input x by 4 and then add 3 to obtain the output y. C. Multiply the input x by 4 and then subtract 3 to obtain the output y. D. Divide the input x by 4 and then add 3 to obtain the output y.
Use completing the square to rewrite the equation in one of the standard forms for a conic and identify the conic.x2 + 8x - y + 9 = 0
A. 
- 
= 1; hyperbola
B. 
+ 
= 1; ellipse
C. x2 + y2 = 28; circle
D. y = (x + 4)2 - 7; parabola
Evaluate the expression.
A. 
B. 
C. 
D. 