In which of the following functional areas is it NOT possible for a firm to realize economies of scale?
A. manufacturing
B. marketing
C. purchasing
D. economies of scale are possible in all of these functional areas
Answer: D
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A levy protects a town in a low-lying area from flooding. According to geologists, the banks of the levy are eroding at a rate of 7 feet per year. If something isn't done to correct the problem, what signed number indicates how much of the levy will erode during the next decade?__________ ft
Fill in the blank(s) with the appropriate word(s).
In a statistics class, 12 students have brown color eyes, 4 have blue eyes, 8 have hazel, and 2 green. What is the mode for this set of data?
A. 6.5 B. brown C. 12 D. none
Solve the problem.A spring with a spring constant of 5 and a 1-unit mass attached to it is stretched 
and released. What is the equation for the resulting oscillatory motion?
A. s(t) = 3 sin 
t
B. s(t) = 3 sin 
t
C. s(t) = 
sin 
t
D. s(t) = 5 sin 
t
Provide an appropriate response.Find y' if ln(xy) + y = 2.
Fill in the blank(s) with the appropriate word(s).