Quiz week 3 file latest
7
Correct The following inequality represents a resource constraint for a maximiza X + Y ≥ 2 !nswer "electe# !nswer: $alse Correct !nswer: $alse % &uestion 2 %2 out of 2 points Correct 'raphical solutions to linear programming problems ha(e an infinite numb ob)ecti(e function lines% !nswer "electe# !nswer: True Correct !nswer: True % &uestion * %2 out of 2 points Correct "urplus (ariables are only associate# with minimization problems% !nswer "electe# !nswer: $alse Correct !nswer: $alse % &uestion %2 out of 2 points Correct ,n a linear programming problem- all mo#el parameters are assume# to be certainty% !nswer "electe# !nswer: True Correct !nswer: True % &uestion / %2 out of 2 points Correct ! linear programming problem may ha(e more than one set of solutions%
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Transcript of Quiz week 3 file latest
Correct The following inequality represents a resource constraint for a maximization problem:
X + Y 20
Answer
Selected Answer: False
Correct Answer: False
. Question 2 .2 out of 2 points
Correct Graphical solutions to linear programming problems have an infinite number of possible objective function lines.
Answer
Selected Answer: True
Correct Answer: True
. Question 3 .2 out of 2 points
Correct Surplus variables are only associated with minimization problems.
Answer
Selected Answer: False
Correct Answer: False
. Question 4 .2 out of 2 points
Correct In a linear programming problem, all model parameters are assumed to be known with certainty.
Answer
Selected Answer: True
Correct Answer: True
. Question 5 .2 out of 2 points
Correct A linear programming problem may have more than one set of solutions.
Answer
Selected Answer: True
Correct Answer: True
. Question 6 .2 out of 2 points
Correct A linear programming model consists of only decision variables and constraints.
Answer
Selected Answer: False
Correct Answer: False
. Question 7 .2 out of 2 points
Correct In minimization LP problems the feasible region is always below the resource constraints.
Answer
Selected Answer: False
Correct Answer: False
. Question 8 .2 out of 2 points
Correct Cully furniture buys 2 products for resale: big shelves (B) and medium shelves (M). Each big shelf costs $500 and requires 100 cubic feet of storage space, and each medium shelf costs $300 and requires 90 cubic feet of storage space. The company has $75000 to invest in shelves this week, and the warehouse has 18000 cubic feet available for storage. Profit for each big shelf is $300 and for each medium shelf is $150. What is the storage space constraint?
Answer
Selected Answer: 100B + 90M 18000
Correct Answer: 100B + 90M 18000
. Question 9 .2 out of 2 points
Correct Cully furniture buys 2 products for resale: big shelves (B) and medium shelves (M). Each big shelf costs $500 and requires 100 cubic feet of storage space, and each medium shelf costs $300 and requires 90 cubic feet of storage space. The company has $75000 to invest in shelves this week, and the warehouse has 18000 cubic feet available for storage. Profit for each big shelf is $300 and for each medium shelf is $150. What is the objective function?
Answer
Selected Answer: MAX Z = $300B + $150 M
Correct Answer: MAX Z = $300B + $150 M
. Question 10 .2 out of 2 points
Correct Which of the following statements is not true?
Answer
Selected Answer: An infeasible solution violates all constraints.
Correct Answer: An infeasible solution violates all constraints.
. Question 11 .2 out of 2 points
Correct ) Which of the following could be a linear programming objective function?
Answer
Selected Answer: Z = 1A + 2B + 3C + 4D
Correct Answer: Z = 1A + 2B + 3C + 4D
. Question 12 .2 out of 2 points
Correct Decision variables
Answer
Selected Answer: measure how much or how many items to produce, purchase, hire, etc.
Correct Answer: measure how much or how many items to produce, purchase, hire, etc.
. Question 13 .2 out of 2 points
Correct In a linear programming problem, a valid objective function can be represented as
Answer
Selected Answer: Max 3x + 3y + 1/3z
Correct Answer: Max 3x + 3y + 1/3z
. Question 14 .2 out of 2 points
Correct The linear programming problem:
MIN Z = 2x1 + 3x2
Subject to: x1 + 2x2 20
5x1 + x2 40
4x1 +6x2 60
x1 , x2 0 ,
Answer
Selected Answer: has an infinite number of solutions.
Correct Answer: has an infinite number of solutions.
. Question 15 .2 out of 2 points
Correct The production manager for the Coory soft drink company is considering the production of 2 kinds of soft drinks: regular (R) and diet(D). Two of the limited resources are production time (8 hours = 480 minutes per day) and syrup limited to 675 gallons per day. To produce a regular case requires 2 minutes and 5 gallons of syrup, while a diet case needs 4 minutes and 3 gallons of syrup. Profits for regular soft drink are $3.00 per case and profits for diet soft drink are $2.00 per case. What is the time constraint?
Answer
Selected Answer: 2R + 4D 480
Correct Answer: 2R + 4D 480
. Question 16 .2 out of 2 points
Correct The production manager for the Coory soft drink company is considering the production of 2 kinds of soft drinks: regular and diet. Two of her limited resources are production time (8 hours = 480 minutes per day) and syrup (1 of her ingredients) limited to 675 gallons per day. To produce a regular case requires 2 minutes and 5 gallons of syrup, while a diet case needs 4 minutes and 3 gallons of syrup. Profits for regular soft drink are $3.00 per case and profits for diet soft drink are $2.00 per case. For the production combination of 135 cases of regular and 0 cases of diet soft drink, which resources will not be completely used?
Answer
Selected Answer: only time
Correct Answer: only time
. Question 17 .2 out of 2 points
Correct The production manager for the Coory soft drink company is considering the production of 2 kinds of soft drinks: regular (R) and diet (D). Two of her limited resources are production time (8 hours = 480 minutes per day) and syrup (1 of her ingredients) limited to 675 gallons per day. To produce a regular case requires 2 minutes and 5 gallons of syrup, while a diet case needs 4 minutes and 3 gallons of syrup. Profits for regular soft drink are $3.00 per case and profits for diet soft drink are $2.00 per case. What is the objective function?
Answer
Selected Answer: MAX $3R + $2D
Correct Answer: MAX $3R + $2D
. Question 18 .2 out of 2 points
Correct Consider the following linear programming problem:
Max Z = $15x + $20y
Subject to: 8x + 5y 40
0.4x + y 4
x, y 0
At the optimal solution, what is the amount of slack associated with the first constraint?
Answer
Selected Answer: 0
Correct Answer:
Evaluation Method Correct Answer Case Sensitivity
Exact Match 0
. Question 19 .2 out of 2 points
Correct Consider the following minimization problem:
Min z = x1 + 2x2
s.t. x1 + x2 300
2x1 + x2 400
2x1 + 5x2 750
x1, x2 0
Find the optimal solution. What is the value of the objective function at the optimal solution? Note: The answer will be an integer. Please give your answer as an integer without any decimal point. For example, 25.0 (twenty five) would be written 25
Answer
Selected Answer: 300
Correct Answer:
Evaluation Method Correct Answer Case Sensitivity
Exact Match 300
. Question 20 .2 out of 2 points
Correct Max Z = $3x + $9y
Subject to: 20x + 32y 1600
4x + 2y 240
y 40
x, y 0
At the optimal solution, what is the amount of slack associated with the second constraint?
Answer
Selected Answer: 96
Correct Answer:
Evaluation Method Correct Answer Case Sensitivity
Exact Match 96
.Sunday, February 16, 2015 7:01:25 PM EST
