Solve given LP problem using simplex method and find maximum value o.pdf
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1. The document describes solving a linear programming problem using the simplex method. It provides the standard form of the LP problem with the objective function and constraints. 2. It shows the initial basic feasible solution and constructs the initial tableau. It then performs two iterations of the simplex method by choosing incoming and outgoing variables. 3. After two iterations, it finds that the optimal solution is x1=15 and x2=12, with maximum objective value Z=120. It provides the final simplex table.
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can someone proofread this for me?
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Trying to relearn math and science has been a bit of a struggle,;the only thing so far that I have
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Describe the arrangement of Regulations for lifting machines and acc.pdf
Describe the arrangement of Regulations for lifting machines and accessories in The Mineral Act
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Solution
The purpose of this act is to regulate the prospecting for and the optimal expoitation , processing
and utiisation of mineras ; to reguate the orderly utilization and the rehabiliation of the land
surface during and after prospecting and mining operations.
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The purpose of this act is to regulate the prospecting for and the optimal expoitation , processing
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environmental management programme or/and as an integral part of the prospecting or mining
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When working with communications, is it more important to detect or .pdf
When working with communications, is it more important to detect or control errors and why is
this the case?
Solution
In communication network, the importance of error control and detecion is as follow:
The error control purpose is the make sure the reciever gets the same information send by the
sender only.Since communication channel is unreliable error control plays impoetant role. Error
control often involves identofications of errors or corrections of data.
Error Detection:
We have different error detection schemes,which allows to identiy the error. The detectionof
error usually depends on the error type,type of transmission. such as single bit errors or burst
errors(continous bit) .
Some of the widely used error-detecting codes are the parity, block sum check, and the cyclic
redundancy check codes..
Which of the following are principles of the AICPA Code of Professio.pdf
Which of the following are principles of the AICPA Code of Professional Conduct? (Mark all
that apply)
Conservatism
Integrity
Due Care
Objectivity and Independence
Conservatism
Integrity
Due Care
Objectivity and Independence
Solution
The Correct Answer would be Integrity, Due Care, Objectivity and Independence
Integrity - As users of the financial statements rely on financial statements audited by the auditor.
The auditor must maintain highest integrity while discharging his duties.Integrity requires the
member to maintian client confidentiality. The information gained through the course of
discharging his duties must not be disclosed to anyone except with prior permission of his client
or when the law or regulations require disclosure of such information. He should not look for his
personal interest over the interest of the public.The members are also required to observe the
principles of Objectivity and Due Care.
Due Care : A member should be due dilligent and must not be grossly negligent while
performing his professional duties. He should abide the professional and ethical standards and he
should continously work towards improving the quality of services provided by him. While
performing an professional activity the member must make a proper plan to perform such
activity and he should continously monitor the activities.He should discharge his duties as a
member to the best of his ability.
Objectivity and Independence - A member performing services must remain independent at all
times during the course of such services. The principle of Objectivity requires the member to be
impartial, intellectually honest and free of conflicts on interest. Independence enhances the
member\'s ability to act with integrity to be objective and maintain an attitude of professional
skepticsm. A member in practice shall continously assess the relationship with client and public
responsibility as required by the principles of Objectivity and Independence.The members who
are not in practice must maintain objectivity while rendering professional services..
Thouhgts on the future of information technology (IT) software secur.pdf
Thouhgts on the future of information technology (IT) software security developments and the
outlook for InfoSec professionals.
Ch14
Solution
Information technology is one of major part in computer science, wherein the major concern is
about IT security, the computer attacks were increased in last few decades’ .The secure future of
Information technology is protecting the networks and cyber security.
Now-a-days majority people were using internet where security is major concern for every
person and Identity theft is one the concern wherein the intruder will stole the information such
as the credit card numbers, Pin’s and social security number and online bank accounts, date of
birth. These hackers will sell the information of the person to third party vendors. Using the
information financial crimes were happening like credit card frauds and accessing online bank
accounts.
Trojan program like Zeus attacked the U.S dept. of transportaion.Zues has different forms and it
was ligitametly used by the criminals for financial attacks and stealing the protected storage
.downloads and executes the arbitrary programs. It automatically redirects the victim to different
site and takes control of web pages and stealing the information
Phishing is a form of fraud in which the attacker tries to learn information such as login
credentials or account information by masquerading as a reputable entity or person in email, IM
or other communication. Channels. Attacks like black hat hacking and attacking the social media
sites by creating a clone of website, whenever the user enters the personal information the
information emailed to them. Phishing is an example of social engineering techniques used to
deceive users, and exploits the poor usability of current web security technologies.
Cyber security have to be improve a lot and white hat hackers will analyse where security
breaches may occur or have occurred, and repair or strengthen systems against such breaches.
Information security specialists and security experts have to be motivated as it is one of the
major fields for any country. The ability, efficiency must be increased to stop the breaches and
protect the future of information security..
Two of the following ions depend on their conversion into a gas .pdf
Two of the following ions depend on their conversion into a gas for detection. What are the 2
ions? The two ions will form an ionic compound. What are the formulas and name of the
compound?
Na+ K+ Ca2+ Fe3+ NH4+ Cl- Br- I- PO43- SO42- CO32-
Two of the following ions depend on their conversion into a gas for detection. What are the 2
ions? The two ions will form an ionic compound. What are the formulas and name of the
compound?
Na+ K+ Ca2+ Fe3+ NH4+ Cl- Br- I- PO43- SO42- CO32-
Solution
I- and NH4+.
The systemic acquired resistance (SAR) demonstrated in the experimen.pdf
The systemic acquired resistance (SAR) demonstrated in the experiment with the tobacco mosaic
virus is possible due to signals sent:
Question 2 options:
through the air
through the xylem
along the leaf surface
through the phloem
through the air
through the xylem
along the leaf surface
through the phloem
Solution
Answer: through the phloem
Explanation:
Several studies have shown that the establishment of SAR involves the generation and transport
of signals via phloem to the uninfected distal tissues.
One implication of the Lyon hypothesis was that adult females would b.pdf
One implication of the Lyon hypothesis was that adult females would be ___ with ___ alleles
functioning in ___ cells. genetic mosaics, same, all genetic mosaics, different, different
genetically identical, different, different genetically identical, same, all
Solution
ans- genetic mosaics,different,different
In genetics mosaic refers to a term which explains the presence of two or more cells population
with different genotypes in an individual developed from a single fertilized egg..
the problems of vietnam in communication during international busine.pdf
the problems of vietnam in communication during international business actives
Solution
The main problems that doing International business activities is vietnam is that there the laws
are too rigid that it is difficult is settin g up a business in vietnam where getting a land ,
electricity , investors etc is a big problem and it is very difficult.
There is lack of infrastruture which is also one major problem as to start a business we have to
develop that infrastructure which is not possible.
The culture of these people quite different where sometimes it is difficult to adapt to their culture
of work.
Corruption is also another problem in Vietnam.
Taxes in vietnam are very high which is also one major problem..
The first signs of niacin deficiency are all of the following EXCEPT .pdf
The first signs of niacin deficiency are all of the following EXCEPT dermatitis anorexia
indigestion weakness
Solution
Answer is dermatitis
The early stage signs and symptoms of niacin deficiency are
Weakness
Headache
Indigestion,
Anorexia,
Fatigue,
Headache
Mild skin eruptions,
Backache
Weight loss.
Only in the advanced stage, the person will get scaly dermatitis. So dermatitis is not the early
sign of niacin deficiency..
The Ba(s) gets formed after reductionBa2+ + 2e- -- Ba(s) which is.pdf
The Ba(s) gets formed after reduction
Ba2+ + 2e- --> Ba(s) which is at cathode (negative electrode)
2I- --> I2(s) + 2e- which is at anode (positive electrode)
Do not understand why this is wrong when I say Ba(s) is formed at negative electrode and I2(s)
is formed at postive electrode.
Solution
the ba2+ ions will migrate to the cathode to gain electrons and convert themselves to Ba(s)
and I- will migrate to the positive electrode to form I2.
so you are correct
since you will also get the E cell >0.
Submit a 2-3 page paper addressing each of the following 1.Define .pdf
Submit a 2-3 page paper addressing each of the following: 1.Define \"air transportation
industry\" and distinguish between certificated air carriers and general aviation. 2.Discuss one
argument in favor and one opposed to U.S. airline deregulation in 1978.
Solution
Air transportation industry is a sub sector of the warehouse and transportation industry. Air
transportation refers to the transport between interstate. This industry provides transportation of
both the passengers as well as cargo. Air transportation industry utilizes helicopters, aircrafts as
well as airplanes to transport the cargo and passengers.
This sector has two types of transportation scheduled as well as unscheduled transportation. The
scheduled air carriers follow regular schedules and have specified route. The unscheduled
carriers fly at non-peak time slots.
Difference between certified air carriers and general aviation is elaborated below:
2.
The Airline deregulation act was incorporated on 24th October 1978 by the US Federal law. This
act is prepared to remove the control of US government over the routes, fares and entry of new
airlines in the industry.
This act helped to increase the number of passengers travelling on US airlines. Besides this it
also help to reduce the price of plane ticket irrespective of inflation. It also raised concerns about
the safety in aviation industry.
However this act also involves certain downsides. One of the major disadvantages of this act
includes the increasing dominance of few major carriers over the industry..
Nessus is a network security toolIn a pragraph describe the tool’s.pdf
Nessus is a network security tool
In a pragraph describe the tool’s features, what it provides?
Note: provide relaiblerefrences for your answer.
Solution
What is Nessus?
Nessus is a remote security scanning tool, which scans a computer and raises an alert if it
discovers
any vulnerabilities that malicious hackers could use to gain access to any computer you have
connected to a network.
It does this by running over 1200 checks on a given computer, testing to see if any of these
attacks could be used
to break into the computer or otherwise harm it.
Who would use a tool like this?
If you are an administrator in charge of any computer (or group of computers) connected to the
internet,
Nessus is a great tool help keep their domains free of the easy vulnerabilities that hackers and
viruses commonly look to exploit.
Why Nesus?
Nessus has a modular architecture consisting of centralized servers that conduct scanning,
and remote clients that allow for administrator interaction. Administrators can include NASL
descriptions of
all suspected vulnerabilities to develop customized scans. Significant capabilities of Nessus
include:
-Compatibility with computers and servers of all sizes.
-Detection of security holes in local or remote hosts.
-Detection of missing security updates and patches.
-Simulated attacks to pinpoint vulnerabilities.
-Execution of security tests in a contained environment.
-Scheduled security audits.
More Features of Nessus Tool:
1)Flexible Deployment Options
Install Nessus on-premises or as a cloud-hosted solution to assess physical, virtual or cloud
environments.
2)Multiple Assessment Types
Protect your IT environment by running vulnerability scans, configuration and compliance
checks,
malware detection, web application scanning and more.
3)Rich Assessment Capabilities
Nessus includes a deep set of assessment capabilities, including agent-based and agent-less
scanning,
to allow you to scan more assets, more frequently.
4)Ongoing Management
Nessus makes it easy to manage both the product and users, with automatic updates and a
constant feed of new information from Tenable.
5)Connect With Core Systems
Integrate Nessus with patch management, mobile device management and credential
management systems.
6)Reporting
Run reports, easily filter data and share results with others in a variety of formats to help others
in the organization understand and address vulnerabilities.
References :
https://www.tenable.com/products/nessus-vulnerability-scanner
http://searchnetworking.techtarget.com/definition/Nessus.
Show a rightmost derivation for the string(id + id) id Usin.pdf
Show a rightmost derivation for the string:
(id + id) * id
Using the grammer:
E -> E + T | E * T | T
T -> ( E ) | id
Solution
The rightmost derivation for the string is as follows:
E->E*T
E->E*id (Since, T->id)
E->T*id (Since, E->T)
E->(E)*id (Since, T->(E))
E->(E+T)*id (Since, E->E+T)
E->(E+id)*id (Since T->id)
E->(T+id)*id (Since E->T)
E->(id+id)*id (Since T->id).
25. The Performance Principle of GAAS requires that sufficient approp.pdf
25. The Performance Principle of GAAS requires that sufficient appropriate evidential matter be
obtained about whether material misstatements exist. The primary means by which the auditor
meets this requirement is through a. studying and documenting internal control. b. performing
substantive tests. c. use of statistical sampling. d. preparation of a detailed audit program.
Solution
Ans- The primary means by which the auditor meets its requirement is through - (a) studying and
documenting internal control..
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- 1. Solve given LP problem using simplex method and find maximum value of objective function. Write all steps. max : = 4.71 + 6x2 s.t. -x1 + 2 11 12s 27 21 52 90 i 1.2 Solution the LPP problem according to Simplex method is given as follows: Let, S1, S2, and S3 are slack variables three constraints. The standard form of given LPP is given as follows: Max Z = 4X1 + 5X2 + 0S1 + 0S2 + 0S3 Subject To: -X1 + X2 + S1 + 0S2 + 0S3 = 11 X1 + X2 + 0S1 + S2 + 0S3 = 27 2X1 + 5X2 + 0S1 + 0S2 + S3 = 90 X1, X2, S1, S2, S3 >= 0 2) To form an initial basic solution, consider the structural variables as zero, in other words X1 = X2 = 0. Thus initial basic variables remains are S1, S2, and S3. Z = 0, S1 = 11, S2 = 27, and S2 = 90 3) The Initial Tableau is constructed as follows: Cj 4 5 0 0 0 B (Quantity) Cb Xb x1 x2
- 3. Cb Xb x1 x2 S1 S2 S3 0 S1 -1 1 1 0 0 11 11/1 = 11 0 S2 1 1 0 1 0 27 27/1 = 27 0 S3 2 5 0 0 1 90 90/5 = 18 Zj 0
- 4. 0 0 0 0 0 j = Cj – Zj 4 5 0 0 0 0 zj=cBj x xj j= (cj-- zj) As the j is positive the optimal solution is not obtained. X2 is having highest j, thus incoming variable is X2. It realizes highest profit for next iteration. Pivot Column = X2, pivot elements are 1, 1, and 5. Determine replacement ratio by dividing B value by respective pivot column elements. The replacement ratio for basis variable S1 is lowest positive, this variable is outgoing variable. S1 is completely utilized if 11 units of X2 are to be produced. Pivot row = S1 Key element (KE) = 1 The elements of next variables are obtained as follows: Incoming Variable value for X1 is obtained as: Other basis variable is obtained as: 1st row/KE Old element – (Key column element x I.V. row element) Cj 4 5 0 0 0 B (Quantity) RR Cb
- 5. Xb x1 x2 S1 S2 S3 5 X2 -1 1 1 0 0 11 11/-1 = -11 0 S2 1-(1*-1) =2 1-(1*1) = 0 0-(1*1) = - 1 1-(1*0) = 1 0-(1*0) = 0 27-(1*11) 16 16/2 = 8 0 S3 2-(5*-1) = 7
- 6. 5-(5*1) = 0 0-(5*1) = -5 0-(5*0) = 0 1-(5*0) = 1 90-(5*11) = 35 35/7 = 5 Zj -5 5 5 0 0 55 j = Cj – Zj 9 0 -5 0 0 As the j is positive the optimal solution is not obtained. X1 is having highest j, thus incoming variable is X1. It realizes highest profit for next iteration. Pivot Column = X1, pivot elements are -1, 2, and 7. The replacement ratio for basis variable S3 is lowest positive, this variable is outgoing variable. S3 is completely utilized if 5 units of X1 are to be produced. Pivot row = S3 Key element (KE) = 7 Cj 4 5 0
- 7. 0 0 B (Quantity) RR Cb Xb x1 x2 S1 S2 S3 5 X2 -1-(-1*1) = 0 1-(-1*0) = 1 1-(-1*-5/7) = 2/7 0 0-(-1*1/7) = 1/7 11-(-1*5) = 16 16/(2/7) = 56 0 S2 2-(2*1) = 0 0-(2*0) = 0 - 1-(2*-5/7) = 3/7 1 0-(2*1/7)
- 8. = -2/7 16-(2*5) = 6 16/(3/7) = 37.33 4 X1 7/7 = 1 0/7 = 0 -5/7 0 1/7 35/7 = 5 5/(-5/7) = -7 Zj 4 5 -10/7 0 9/7 (5*16+4*5) = 100 j = Cj – Zj 0 0 10/7 0 -9/7 As the j is positive the optimal solution is not obtained. S1 is having highest j, thus incoming variable is S1. It realizes highest profit for next iteration. Pivot Column = S1, pivot elements are 2/7, 3/7, and -5/7. The replacement ratio for basis variable S2 is lowest positive, this variable is outgoing variable.
- 9. S2 is completely utilized if 37.33 units of S2 are to be produced. Pivot row = S2 Key element (KE) = 3/7 Cj 4 5 0 0 0 B (Quantity) RR Cb Xb x1 x2 S1 S2 S3 5 X2 0 1-(2/7*0) = 1 2/7-(2/7*1) = 0 0-(2/7*7/3) = -2/3 1/7-(2/7*-2/3) = 1/3 16-(2/7*14) = 12 16/(2/7) = 56 0 S1 0
- 10. 0 1 7/3 (-2/7)/(3/7) = -2/3 6/(3/7) = 14 16/(3/7) = 37.33 4 X1 1 0 -5/7-(-5/7*1) = 0 0-(-5/7*7/3) = 5/3 1/7-(-5/7*-2/3) = -1/3 5 –(-5/7*14) = 15 5/(-5/7) = -7 Zj 4 5 0 10/3 1/3 (5*12+4*15) = 120 j = Cj – Zj 0 0 0 -10/0
- 11. -1/3 As all j is less than or equal to zero the optimal solution is obtained. X1 = 15 and X2 = 12 Z = 120 Cj 4 5 0 0 0 B (Quantity) Cb Xb x1 x2 S1 S2 S3 0 S1 -1 1 1 0 0 11 0 S2 1 1 0 1 0 27 0 S3
- 12. 2 5 0 0 1 90