Solve the problem.The profit function for a product is given by P(x) = -0.4x3 + 66x2 - 2120x - 48,000 dollars, where x is the number of units produced and sold. Determine the levels of production and sale that give break-even.
A. 120 units
B. 80 or 100 units
C. 100 units
D. 90 or 120 units
Answer: B
Mathematics
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Calculate.-23 - (-53)
A. 30 B. -30 C. 76 D. -76
Mathematics
Use De Moivre's theorem to evaluate the expression. Write the result in standard form.
10
A. - 
- 
i
B. - 
+ 
i
C. 
- 
i
D. 
+ 
i
Mathematics
Convert the units using unit fractions.3
ft = 
in.
A. 
B. 
C. 42
D. 36
Mathematics
Solve the problem.Water is pumped through a pipe system at 804 gallons per hour. Find a linear function f that computes the number of gallons of water pumped in x hours.
A. f(x) = 804x B. f(x) = x - 804 C. f(x) = 804 + x D. f(x) = 804
Mathematics