Introduction to mathematical programming
4th Edition
ISBN: 9780534359645
Author: Jeffrey B. Goldberg
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Expert Solution & Answer
Chapter 4, Problem 17RP
Explanation of Solution
Explanation:
The table for a maximization problem is given below.
| z | x1 | x2 | x3 | x4 | x5 | ... |
Explanation of Solution
a.
Explanation:
- For the current solution to be optimal, all the non basic variables in row zero have non negative coefficients, so this implies, -c≥0...
Explanation of Solution
b.
Explanation:
- The current solution is optimal and there are alternative optimal solutions, the conditions on the unknown that makes this statement true are b≥0 and c=0.
- This is because if x1 has a zero coefficient in the optimal tableau’s row 0, then the pivot that enters x1 into the basis does not change row zero.
- So all the variables in row zero have positive coefficients...
Explanation of Solution
c.
Explanation:
- An unbounded LP for a maximization problem occurs when a variable with a negative coefficient in row zero has non positive coefficient in each constraint.
- So an LP is unbounded if there exists points in feasible region for which z assumes arbitrarily large values for a maximization problem and arbitrarily small values for a minimization problem...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Solve the following exercise using jupyter notebook for Python, to find the objective function, variables, constraint matrix and print the graph with the optimal solution.
A farm specializes in the production of a special cattle feed, which is a mixture of corn and soybeans. The nutritional composition of these ingredients and their costs are as follows:
- Corn contains 0.09 g of protein and 0.02 g of fiber per gram, with a cost of.$0.30 per gram.- Soybeans contain 0.60 g of protein and 0.06 g of fiber per gram, at a cost of $0.90 per gram.0.90 per gram.
The dietary needs of the specialty food require a minimum of 30% protein and a maximum of 5% fiber. The farm wishes to determine the optimum ratios of corn and soybeans to produce a feed with minimal costs while maintaining nutritional constraints and ensuring that a minimum of 800 grams of feed is used daily.
Restrictions
1. The total amount of feed should be at least 800 grams per day.2. The feed should contain at least 30% protein…
Solve the following problem and find the optimal solution.
QUESTION 9
What is one advantage of AABB over Bounding Spheres?
Computing the optimal AABB for a set of points is easy to program and
can be run in linear time. Computing the optimal bounding sphere is a
much more difficult problem.
The volume of AABB can be an integer, while the volume of a Bounding
Sphere is always irrational.
An AABB can surround a Bounding Sphere, while a Bounding Sphere
cannot surround an AABB.
To draw a Bounding Ball you need calculus knowledge.
Chapter 4 Solutions
Introduction to mathematical programming
Ch. 4.1 - Prob. 1PCh. 4.1 - Prob. 2PCh. 4.1 - Prob. 3PCh. 4.4 - Prob. 1PCh. 4.4 - Prob. 2PCh. 4.4 - Prob. 3PCh. 4.4 - Prob. 4PCh. 4.4 - Prob. 5PCh. 4.4 - Prob. 6PCh. 4.4 - Prob. 7P
Ch. 4.5 - Prob. 1PCh. 4.5 - Prob. 2PCh. 4.5 - Prob. 3PCh. 4.5 - Prob. 4PCh. 4.5 - Prob. 5PCh. 4.5 - Prob. 6PCh. 4.5 - Prob. 7PCh. 4.6 - Prob. 1PCh. 4.6 - Prob. 2PCh. 4.6 - Prob. 3PCh. 4.6 - Prob. 4PCh. 4.7 - Prob. 1PCh. 4.7 - Prob. 2PCh. 4.7 - Prob. 3PCh. 4.7 - Prob. 4PCh. 4.7 - Prob. 5PCh. 4.7 - Prob. 6PCh. 4.7 - Prob. 7PCh. 4.7 - Prob. 8PCh. 4.7 - Prob. 9PCh. 4.8 - Prob. 1PCh. 4.8 - Prob. 2PCh. 4.8 - Prob. 3PCh. 4.8 - Prob. 4PCh. 4.8 - Prob. 5PCh. 4.8 - Prob. 6PCh. 4.10 - Prob. 1PCh. 4.10 - Prob. 2PCh. 4.10 - Prob. 3PCh. 4.10 - Prob. 4PCh. 4.10 - Prob. 5PCh. 4.11 - Prob. 1PCh. 4.11 - Prob. 2PCh. 4.11 - Prob. 3PCh. 4.11 - Prob. 4PCh. 4.11 - Prob. 5PCh. 4.11 - Prob. 6PCh. 4.12 - Prob. 1PCh. 4.12 - Prob. 2PCh. 4.12 - Prob. 3PCh. 4.12 - Prob. 4PCh. 4.12 - Prob. 5PCh. 4.12 - Prob. 6PCh. 4.13 - Prob. 2PCh. 4.14 - Prob. 1PCh. 4.14 - Prob. 2PCh. 4.14 - Prob. 3PCh. 4.14 - Prob. 4PCh. 4.14 - Prob. 5PCh. 4.14 - Prob. 6PCh. 4.14 - Prob. 7PCh. 4.16 - Prob. 1PCh. 4.16 - Prob. 2PCh. 4.16 - Prob. 3PCh. 4.16 - Prob. 5PCh. 4.16 - Prob. 7PCh. 4.16 - Prob. 8PCh. 4.16 - Prob. 9PCh. 4.16 - Prob. 10PCh. 4.16 - Prob. 11PCh. 4.16 - Prob. 12PCh. 4.16 - Prob. 13PCh. 4.16 - Prob. 14PCh. 4.17 - Prob. 1PCh. 4.17 - Prob. 2PCh. 4.17 - Prob. 3PCh. 4.17 - Prob. 4PCh. 4.17 - Prob. 5PCh. 4.17 - Prob. 7PCh. 4.17 - Prob. 8PCh. 4 - Prob. 1RPCh. 4 - Prob. 2RPCh. 4 - Prob. 3RPCh. 4 - Prob. 4RPCh. 4 - Prob. 5RPCh. 4 - Prob. 6RPCh. 4 - Prob. 7RPCh. 4 - Prob. 8RPCh. 4 - Prob. 9RPCh. 4 - Prob. 10RPCh. 4 - Prob. 12RPCh. 4 - Prob. 13RPCh. 4 - Prob. 14RPCh. 4 - Prob. 16RPCh. 4 - Prob. 17RPCh. 4 - Prob. 18RPCh. 4 - Prob. 19RPCh. 4 - Prob. 20RPCh. 4 - Prob. 21RPCh. 4 - Prob. 22RPCh. 4 - Prob. 23RPCh. 4 - Prob. 24RPCh. 4 - Prob. 26RPCh. 4 - Prob. 27RPCh. 4 - Prob. 28RP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Two investments with varying cash flows (in thousands of dollars) are available, as shown in the table below. At time 0, $10,000 is available for investment, and at time 1, $7,000 is available. Assuming that r 0.10, set up an LP whose solution maximizes the NPV obtained from these investments. Graphically find the optimal solution to the LP.arrow_forwardA construction company has four large bulldozers located at four different garages. The bulldozers are to be moved to four different construction sites. The distances in miles between the bulldozers and the construction sites are given below. Bulldozer/ A B C D Site Students 1 90 75 75 80 solve it 2 35 85 55 65 yourself 3 125 95 90 105 4 45 110 95 115 How should the bulldozers be moved to the construction sites in order to minimize the total distance traveled?arrow_forward2 The Optimal Order paper company has received orders for four different groups of publications. The following orders have been placed. 8 rolls of 2 ft. paper at $2.50 per roll 6 rolls of 2.5 ft. paper at $3.10 per roll 5 rolls of 4 ft. paper at $5.25 per roll 4 rolls of 3 ft. paper at $4.40 per roll Due to heavy demand on the printing process, the paper company only has 13 ft. of paper from which to fill these orders. If partial orders (1 roll,2 rolls,3 rolls, etc.) can be filled, which orders and how many of each should be filled to maximize total profit? Use Dynamic Programming to answer the question and show stages 4 and 3 only.arrow_forward
- If it is possible to create an optimal solution for a problem by constructing optimal solutions for its subproblems, then the problem possesses the corresponding property. a) Subproblems which overlap b) Optimal substructure c) Memorization d) Greedyarrow_forwardK = 0, L = 18 Write and solve the following linear program using lingo, take screen shots of your model as well as the reports and the optimal solution. Clearly show the optimal solution.NB:K=the second digit of your student number;L=sum of the digits of your student number, For example if your student number is 17400159 thenK=7andL=1+7+4+0+0+1+5+9=27!!!! SAVE YOUR FILE BY YOUR STUDENT NUMBER!!!!minz=t∈T∑(AtYt+PtXt)+k∈K∑(HkUk+BkVk)s.t.Uk+Vk=50∀k∈KXt−CtYt<=0∀t∈Tk∈K∑Vk≥80t∈T∑Xt≥t∈T∑DtXt>=0∀t∈TYt∈{0,1}∀t∈TUk>=0∀k∈KVk>=0∀k∈KThe sets parameters and data are as follows: \[ \begin{array}{l} \mathrm{T}=\{1,2,3,4\} \\ \mathrm{K}=\{0,1,2,3,4\} \\ \mathrm{A}=\{5000,7000,8000,4000\} \\ \mathrm{D}=\{250,65,500,400\} \\ \mathrm{C}=\{500,900,700,800\} \\ \mathrm{P}=\{20, \mathrm{~L}, 25,20\} \\ \mathrm{H}=\{5,3,2, \mathrm{~K}, 9\} \\ \mathrm{B}=\{8,5,4,7,6\} \end{array} \]arrow_forwardABC Company produces three electrical products—blenders, choppers, and toasters. The manufacturer has a maximum daily production budget of RM2000 and a maximum of 660 hours of labor. Maximum daily customer demand is for 200 blenders, 300 choppers, and 150 toasters. The unit profit for blender is RM8, choppers, RM10, and toaster, RM7. The company desires to know the optimal product mix that will maximize profit. These products have the following resource requirements as shown in Table 1. Based on the report, answer the following questions and justify all your answers. Formulate the LP model for the above case study. Suppose that the company would like to increase the profit of the toasters to RM9 per unit without affecting the optimum number of products to be produced based on earlier conditions. Based on the Sensitivity Report, advise the company if this can be accomplished and justify your answer. If this can be done, what would be the company’s profit based on new pricing. The…arrow_forward
- ABC Company produces three electrical products—blenders, choppers, and toasters. The manufacturer has a maximum daily production budget of RM2000 and a maximum of 660 hours of labor. Maximum daily customer demand is for 200 blenders, 300 choppers, and 150 toasters. The unit profit for blender is RM8, choppers, RM10, and toaster, RM7. The company desires to know the optimal product mix that will maximize profit. These products have the following resource requirements as shown in Table 1. Based on the report, answer the following questions and justify all your answers. Formulate the LP model for the above case study. Optimize the Company ABC production using linear programming simplex method. Suppose that the company would like to increase the profit of the toasters to RM9 per unit without affecting the optimum number of products to be produced based on earlier conditions. Based on the Sensitivity Report, advise the company if this can be accomplished and justify your answer. If this…arrow_forwardConsider the following linear programming model: Max 2X1 + 3X2 Subject to: X1 ≤ 2 X2 ≤ 3 X1 ≤ 1 X1, X2 ≥ 0 This linear programming model has: a. alternate optimal solutions b. infeasible solution c. redundant constraint d. unbounded solutionarrow_forwardPlease explain! Dynamic Programming can be used to solve numerous real-life optimization problems. Consider these six problems.Five of these six problems have elegant and efficient solutions using Dynamic Programming, but one of these problems does not. Which of these six problems cannot be solved using Dynamic Programming? Choice 1 of 6: Given a rod, and a set of prices p[i] for each cut of length i, determine how to cut the rods to maximize your profit Choice 2 of 6: Given a rod, and a set of prices p[i] for each cut of length i, determine how to cut the rods to minimize your profit Choice 3 of 6: Given a graph, determine the shortest path from the start vertex to the end vertex without repeating any edges Choice 4 of 6: Given a graph, determine the longest path from the start vertex to the end vertex without repeating any edges Choice 5 of 6: Given a sequence of integers, determine the longest increasing subsequence of that sequence Choice 6 of 6: Given a sequence of integers,…arrow_forward
- Question 31 An optimal solution is only optimal with respect to a particular mathematical model that provides only a representation of the actual problem. O True O Falsearrow_forward1. Consider an instance of the Knapsack Problem without repetitions with 4 items, having weights and values as follows. The weights (in pounds) are w1=2, w2 =7, w3 =10, w4 =12. The dollar values of these items are respectively v1 = 12, v2 = 28, v3 = 30, v4 = 5. The capacity of the knapsack is 12. (a) Find the optimal solution for Fractional Knapsack. (b) Find the optimal solution for 0-1 Knapsack.arrow_forwardUsing Python/PuLP solve At the beginning of month 1, Finco has $400 in cash. At the beginning of months 1, 2, 3, and 4, Finco receives certain revenues, after which it pays bills (see Table 2 below). Any money left over may be invested for one month at the interest rate of 0.1% per month; for two months at 0.5% per month; for three months at 1% per month; or for four months at 2% per month. Use linear programming to determine an investment strategy that maximizes cash on hand at the beginning of month 5. Formulate an LP to maximize Finco’s profit. Table 2 Month Revenues ($) Bills ($) 1 400 600 2 800 500 3 300 500 4 300 250arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Operations Research : Applications and AlgorithmsComputer ScienceISBN:9780534380588Author:Wayne L. WinstonPublisher:Brooks Cole
Operations Research : Applications and Algorithms
Computer Science
ISBN:9780534380588
Author:Wayne L. Winston
Publisher:Brooks Cole