Find the minimum value of the objective function and where it occurs, subject to the indicated constraints.
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Objective function:
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z = 4x + 7y
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Constraints:
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x ? 0
y ? 0
x + 3y ? 15
4x + y ? 16
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A. Minimum at (3, 4): 40
B. Minimum at (0, 0): 0
C. Minimum at (0, 5): 35
D. Minimum at (4, 3): 37
E. Minimum at (4, 0): 16
Answer: B
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Solve the problem using the loan payoff table or an amortization table.
John Thomas bought a new car for $16,445. He paid 10% down and monthly payments for 3 years at 10%. Find the amount of each monthly payment necessary to amortize the loan and the total amount of interest paid over the 3 years.
A. $559.61, $5,345.46 B. $484.57, $2,644.02 C. $530.68, $2,659.48 D. $477.61, $2,393.46
Solve the problem.To remodel a bathroom, a contractor charges $30 per hour plus material costs, which amount to $4560. Therefore, the total cost to remodel the bathroom is given by 
where x is the number of hours the contractor works. Find 
What does 
compute?
A. f -1(x) = 
- 4560; This computes the total cost if the contractor works x hours.
B. f -1(x) = 
- 4560; This computes the number of hours worked if the total cost is x dollars.
C. f -1(x) = 
- 152; This computes the total cost if the contractor works x hours.
D. f -1(x) = 
- 152; This computes the number of hours worked if the total cost is x dollars.
Factor completely. If the polynomial is prime, then state this as your answer.5x2 - 17x - 12
A. (5x + 3)(x - 4) B. (5x - 3)(x + 4) C. (5x + 4)(x - 3) D. (5x - 4)(x + 3)
Perform the indicated operation, whenever possible.Let A = 
and B = 
. Find A - B.
A. 
B. 
C. 
D. 