Solve.The average cost per tape, in dollars, for a company to produce x sports videotapes is given by the functionA(x) = 
for x > 0
Graph the function on the interval (0, ?) and complete the following:A(x) ? 
as x ? ?.
A. 
A(x) ? 1 as x ? ?.
B. 
A(x) ? 0 as x ? ?.
C. 
A(x) ? 16 as x ? ?.
D. 
A(x) ? 11 as x ? ?.
Answer: D
Mathematics
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Solve the equation.
x + 
= 
x
A. -14 B. 16 C. 14 D. -16
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Solve the equation using the quadratic formula.6 = - 
- 
A. 
B. 
C. 
D. 
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Find the axis of symmetry of the function.f(x) = 9x - x2
A. x = - 
B. x = - 
C. x = - 
D. x = 
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Solve the problem.A rectangular piece of cardboard measuring 27 inches by 41 inches is to be made into a box with an open top by cutting equal size squares from each corner and folding up the sides. Let x represent the length of a side of each such square. For what value of x will the volume be a maximum? If necessary, round to 2 decimal places.
A. 5.32 in. B. 34.7 in. C. 17.35 in. D. 21.22 in.
Mathematics