A company produces a new product for which it estimates the annual sales to be 5000 units. Suppose that in any given year 10% of the units (regardless of age) will become inoperative. How many units will be in use after n years?
?
A. 
B. 
C. 
D. 
E. 
Answer: D
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Choose the best wording for the question in the study.A researcher wishes to determine the level of support for a new environmental law. Which of the following questions will produce the most accurate results?
A. How do you feel about the new environmental law? B. How do you feel about this latest new environmental law? C. Are you in favor of the new environmental law which will cost taxpayers ten million dollars? D. Are you in favor of the new environmental law which will improve the quality of our air?
Solve the problem.How many liters (L) of a 10% silver iodide solution must be mixed with 9 L of a 4% silver iodide solution to get a 6% solution?
A. 4.5 L B. 5.5 L C. 3.5 L D. 9.0 L
Subtract. Write the answer in lowest terms.
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A. 
B. 
C. 
D. 
Provide an appropriate response.A manufacturer produces two products, product A and product B. Both products require processing on Machines I and II. The number of hours needed to produce one unit is given by the following chart: 
Machine I is available for at most 1150 hours and Machine II is available for at most 1100 hours. If the profit made on product A is $15 / unit and the profit made on product B is $30 / unit. Find the production level that will maximize profit and find the Maximum profit.
What will be an ideal response?