When a firm experiences improvements in efficiency as it incrementally increases its size, the firm is said to have created which of the following barriers to entry?
A. economies of switching
B. economies of scope
C. economies of scale
D. economies of distribution
Answer: C
Mathematics
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Graph the pair of functions on the same plane. Use a dashed line for g(x).f(x) = 
, g(x) = -4
A. 
B. 
C. 
D. 
Mathematics
Graph the system of inequalities. Shade the region that represents the solution set.
A. 
B. 
C. 
D. 
Mathematics
Find the square root.
A. 2
B. 
C. 
D. 4
Mathematics
Find the derivative.f(x) = 3x4 + 3x3 + 9
A. f'(x) = 4x3 + 3x2 - 7 B. f'(x) = 12x3 + 9x2 C. f'(x) = 12x3 + 9x2 - 7 D. f'(x) = 4x3 + 3x2
Mathematics