Solve the problem.The total profit function P(x) for a company producing x thousand units is given by
Find the values of x for which the company makes a profit. [Hint: The company makes a profit when 
A. x is less than 11 thousand units
B. x is between 3 thousand units and 11 thousand units
C. x is greater than 3 thousand units
D. x is less than 3 thousand units or greater than 11 thousand units
Answer: B
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Solve the system of equations using the addition method.
A. (0, -5) B. (0, -4) C. (-1, -4) D. No solution
Write using radical notation. Then, simplify, if possible.x1/4
A. x-4
B.
C.
D.
Solve the problem. Round your answer, as needed.Calculate an average rate of speed for v = 2.1 mph and d = 6.4 mph in the formulaA = .
A. 1.26 mph B. Cannot be determined without additional information C. 3.16 mph D. 1.58 mph
Solve the problem.The function A = Aoe-0.01155x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 300 pounds of the material are initially put into the vault, how many pounds will be left after 140 years?
A. 223 pounds B. 64 pounds C. 350 pounds D. 60 pounds