A company manufactures two products, A and B. If x is the number of thousands of units of A and y is the number of thousands of units of B, then the cost and revenue in thousands of dollars are
?
?
Find the number of each type of product that should be manufactured to maximize profit.
?
A. 3,000 units of product A48,000 units of product B
B. 6,000 units of product A24,000 units of product B
C. 12,000 units of product A12,000 units of product B
D. 3,000 units of product A12,000 units of product B
E. 12,000 units of product A48,000 units of product B
Answer: B
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Enrollment at a certain university t years after 2000 is given by
.
According to the model, what is the maximum enrollment that can be attained? Round your answer to two decimal places, if necessary.
?
A. 10,853.00 B. 21,706 C. 5,426.50 D. 22,031
Solve the problem.After retirement, Kelly's company offers her two options for receiving her retirement pension. According the the first plan, she will receive monthly payments from a variable annuity that initially pays 
per month then decreases each month at a rate of 
per month per year. Optionally, she may choose a plan that pays her a fixed amount of 
per month for the rest of her life. The monthly payments for the two plans are illustrated in the graph
below. After how many years does the variable plan pay less per month than the fixed plan?
A. 9 years
B. 8 years
C. Up to 8 years
D. The variable plan always pays less.
Plot the point in a polar coordinate system.(-4, 225°)
A. 
B. 
C. 
D. 
Solve the problem.The students at ABC School are selling tickets for their carnival. Each ticket sells for 50¢. The school wants to raise $7500 in ticket sales. How many tickets must the school sell to reach its goal of $7500?
A. 150,000 B. 3750 C. 15,000 D. 1500