The document provides information and steps to solve multiple math word problems using systems of linear equations and matrices. It discusses using row operations to transform matrices into reduced row echelon form to solve systems of linear equations with 1, 2, and 3 variables. It also sets up and solves a word problem using a matrix to determine unknown prices from collected revenue and item quantities sold at two gates.
Solutions manual for prealgebra 2nd edition by millerPoppy1824
Solutions manual for prealgebra 2nd edition by miller
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Solutions manual for prealgebra 2nd edition by millerPoppy1824
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Maths: Multiplication Worksheet (CBSE Grade II )theeducationdesk
1.1 Repeated addition & Equal Groups
1.2 Skip Counting to Multiply
1.3 Multiplication Order
1.4 Multiplication by 0, 1, 10
1.5 Tables of 2,3,4,5,10
1.6 Multiply without carry
1.7 Story Problems
Maths: Multiplication Worksheet (CBSE Grade II )theeducationdesk
1.1 Repeated addition & Equal Groups
1.2 Skip Counting to Multiply
1.3 Multiplication Order
1.4 Multiplication by 0, 1, 10
1.5 Tables of 2,3,4,5,10
1.6 Multiply without carry
1.7 Story Problems
Big data is high volume, high velocity, and/or high variety information assets that require new forms of processing to enable enhanced decision making, insight discovery and process optimization.
The Gandhi Heritage Portal is a repository of authentic information about Mahatma Gandhi. It contains rare photos, books and writings about Mahatma Gandhi.
Agile2015 short paper presentation: Development of Complex Software with Agil...Alan Braz
Agile Software Development (ASD) has been on mainstream through methodologies such as XP and Scrum enabling them to be applied in the development of complex and reliable software systems. This paper is the end result of the Master’s dissertation of the main author, and proposes a solution to guide the development of complex systems based on components by adding exceptional behavior modeling practices to Scrum, resulting in the Scrum+CE method (Scrum with Exceptional Behavior).
In order to evaluate the proposed method, a synthetic controlled experiment was conducted with three groups.We compared the efficiency of the new process in relation to plain Scrum and the results were the production of a better quality software but with less features implemented during the same amount of time.
Yazılım projelerinde çıkan hatalar ne kadar geç fark edilirlerse o kadar yüksek maliyetlere yol açarlar. Yazılım geliştirme yaşam döngüsünün ilk aşamalarında yapılan testlerle ortaya çıkan hatalar projeye efor maliyeti olarak yansır, son aşamalarında ortaya çıkartılan hatalar ise müşterinin bilgisi dahilinde olabileceği için hem yüksek maliyetli hem de itibar zedeleyici bir şekil alabilir.
Test maliyetleri hataların projede tespit edildiği aşamaya bağlı olarak çok değişkenlik göstermektedir. Önemli olan hataları yazılım geliştirme yaşam döngüsünün ilk adımlarından başlayarak gidermeye yönelik test aşamaları ile yürütmek, yönetmek ve raporlamaktır. Bu şekilde amaçlanan kalite ve standart seviyesine ulaşmak ve süreçleri iyileştirmek mümkündür.
Detaylı bilgi için tıklayınız: http://mirsis.com.tr/TestHizmeti
Pre-Calculus Quarter 4 Exam
1
Name: _________________________
Score: ______ / ______
1. Find the indicated sum. Show your work.
2. Locate the foci of the ellipse. Show your work.
𝑥2
36
+
𝑦2
11
= 1
Pre-Calculus Quarter 4 Exam
2
3. Solve the system by the substitution method. Show your work.
2y - x = 5
x2 + y2 - 25 = 0
4. Graph the function. Then use your graph to find the indicated limit. You do not have to
provide the graph
f(x) = 5x - 3, f(x)
5. Use Gaussian elimination to find the complete solution to the system of equations, or state
that none exists. Show your work.
4x - y + 3z = 12
x + 4y + 6z = -32
5x + 3y + 9z = 20
Pre-Calculus Quarter 4 Exam
3
6. Solve the system of equations using matrices. Use Gaussian elimination with back-
substitution.
x + y + z = -5
x - y + 3z = -1
4x + y + z = -2
7. A woman works out by running and swimming. When she runs, she burns 7 calories per
minute. When she swims, she burns 8 calories per minute. She wants to burn at least 336
calories in her workout. Write an inequality that describes the situation. Let x represent the
number of minutes running and y the number of minutes swimming. Because x and y must be
positive, limit the boarders to quadrant I only.
Short Answer Questions: Type your answer below each question. Show your work.
8. A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that
each of these statements is true. Show your work.
Sn: 1
2
+ 4
2
+ 7
2
+ . . . + (3n - 2)
2
=
𝑛(6𝑛2−3𝑛−1)
2
Pre-Calculus Quarter 4 Exam
4
9. A statement Sn about the positive integers is given. Write statements Sk and Sk+1, simplifying
Sk+1 completely. Show your work.
Sn: 1 ∙ 2 + 2 ∙ 3 + 3 ∙ 4 + . . . + n(n + 1) = [n(n + 1)(n + 2)]/3
10. Joely's Tea Shop, a store that specializes in tea blends, has available 45 pounds of A grade tea and
70 pounds of B grade tea. These will be blended into 1 pound packages as follows: A breakfast
blend that contains one third of a pound of A grade tea and two thirds of a pound of B grade tea
and an afternoon tea that contains one half pound of A grade tea and one half pound of B grade
tea. If Joely makes a profit of $1.50 on each pound of the breakfast blend and $2.00 profit on
each pound of the afternoon blend, how many pounds of each blend should she make to
maximize profits? What is the maximum profit?
11 Your computer supply store sells two types of laser printers. The first type, A, has a cost of $86
and you make a $45 profit on each one. The second type, B, has a cost of $130 and you make a
$35 profit on each one. You expect to sell at least 100 laser printers this month and you need to
make at least $3850 profit on them. How many of what type of p
1. Which of the following is the correct matrix representation .docxjackiewalcutt
1.
Which of the following is the correct matrix representation of the October Inventory of small and large t-shirts and pants?
Inventory for August
Inventory for September
Inventory for October
Small
Large
Small
Large
Small
Large
T-Shirts
2
3
4
6
7
8
Pants
1
4
3
5
5
6
Answer
1.
If find -2A.
Answer
1.
If and find A - B.
Answer
1.
If find 2A.
Answer
1.
Matrix A has dimensions 2 x 3. Matrix B has dimensions 3 x 6. These two matrices can be multiplied to find the product AB.
Answer True False
1.
Evaluate
Answer
Does not exist.
1.
Evaluate
Answer
Does not exist
1.
Evaluate
Answer
Does not exist.
1.
Find the determinant of
Answer
14
-14
1
-1
1.
Find the determinant of
Answer
-48
-56
56
48
1.
What is the determinant of the following matrix?
Answer
-10
-14
-20
-25
1.
What is the determinant of the following matrix? Does the matrix have an inverse?
Answer
5; no
5; yes
1; no
1; yes
1.
Is the following system consistent or inconsistent?
8x + y + 4 = 0
y = -8x - 4
Answer
consistent
inconsistent
1.
Is the following system consistent or inconsistent?
7x + 6 = -2y
-14x -4y + 2 = 0
Answer
consistent
inconsistent
1.
Is the following system consistent or inconsistent?
-2x - 2y = 6
10x + 10y = -30
Answer
consistent
inconsistent
1.
Is the following system consistent or inconsistent?
2y = x - 7
-2x - 6y = -14
Answer
consistent
inconsistent
1.
Is the following system consistent or inconsistent?
y = 2x + 5
-2x + y = -2
Answer
consistent
inconsistent
If a system has exactly one solution it is called _______________.
Answer
consistent
inconsistent
independent
dependent
1.
Does the following system of equations have a solution?
Answer
Yes
No
1.
What is the approximate solution of the following system of equations?
Answer
(2, -7)
(-7, 2)
(7, 2)
(-7, -2)
1.
Solve the following system of equations by using the substitution method.
3y – 2x = 11
y + 2x = 9
Answer
(2, 5)
(-2, -5)
(4, 5)
Inconsistent
1.
Solve the following system of equations by using the substitution method.
y = -3x + 5
5x – 4y = -3
Answer
(-1, -2)
(2, 1)
(3, 4)
(1, 2)
1.
Solve the following system of equations by using the elimination method.
x – y = 11
2x + y = 19
Answer
(1, 10)
(-1, -1)
(12, 2)
(10, -1)
1.
Solve the following system of equations by using the elimination method.
-4x – 2y = -12
4x + 8y = -24
Answer
(5, 3)
(-6, -6)
(3, 1)
(6, -6)
1.
Solve the following system of equations using matrices.
3x – 2y = 31
3x + 2y = -1
Answer
(5, -8)
(3, 5)
(-3, 9)
(2, 8)
1.
Solve the following system of equations using matrices.
4x + 5y = -7
3x – 6y = 24
Answer
(1, 4)
(2, -3)
(5, 6)
(3, 4)
1.
The sum of two numbers is 7. Four times the first number is one more than 5 times the second. Find the two numbe ...
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
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Leading Change strategies and insights for effective change management pdf 1.pdf
Expert Voices
1. Question One It is 2011 and the Minnesota State Fair is just around the corner. Ryan can’t wait to go and stand in line for all of his favorite state fair foods. He always make sure that he stops at the following booths: Deep Fried Candy Bar $3.50, Cotton Candy $3.25, Corn on the Cob $4.00, Pronto Pup $3.75, and the Pork Chop on a Stick $5.25. Ryan heard from Lena that all the food booths at the state fair are increasing their prices by 7%. If this is the case how much will he now have to pay for all of his favorite foods?
2. Helpful Advice For this problem using scalar multiplication would be a very useful tool.
6. Another Route By having your scalar equal to 1.08 you are eliminating the need to add the percentage increase to the original amount – this new scalar will do just that! Just multiple the matrix by the scalar and you will get your result immediately!
8. Question Two Solve the following system of linear equations. X + 4Y = 3 2X + 9Y = 5
9. Notation Row switching : A row within the matrix can be switched with another row. R1 R2 Row multiplication: Each element in a row can be multiplied by a non-zero constant.k* R1 R1, k ≠ 0Row addition: A row can be replaced by the sum of that row and a multiple of another row. R1 + kR2 R1, k ≠ 0
10. The ultimate goal is to get our matrix to look like the one to the left and then the values in the #1, #2 locations will be the solutions to the problemfor x and y Goal
11. Using row operations here we go…. Step 1: Set up the augmented matrix Step 2: First Operation
12. Step 2: First Operation -2R1 + R2 R2 Notice no change was made to R1 (row 1) R1 = Row One and R2 = Row Two
13. Step 3: Second Operation -4R2 + R1 R1 Notice no change was made to R2 (row 2) R1 = Row One and R2 = Row Two
15. Step 5: Double check the solution you found X + 4Y = 3 2X + 9Y = 5 Original Equations (7) + 4(-1) = 3 2(7) + 9(-1) = 5 It Works!
16. Question Three Solve the following system of linear equations. X + Y - Z = -2 2X – Y + Z= 5 -X+2Y+2Z = 1 Same idea but now we have to work with the three variables.
17. The ultimate goal is to get our matrix to look like the one to the left and then the values in the #1, #2, #3 locations will be the solutions to the problemfor x and y and z Goal
19. Step 2: First Operation -2R1 + R2 R2 Notice no change was made to R1 and R3 R1 = Row One and R2 = Row Two and R3 = Row Three
20. Step 3: Operation R1 + R3 R3 Notice no change was made to R1 and R2 R1 = Row One and R2 = Row Two and R3 = Row Three
21. Step 4: Operation R2 ÷ -3 R2 Notice no change was made to R1 and R3 R1 = Row One and R2 = Row Two and R3 = Row Three
22. Step 5: Operation -3R2 + R3 R3 Notice no change was made to R1 and R2 R1 = Row One and R2 = Row Two and R3 = Row Three
23. Step 6: Operation R3 ÷ 4 R3 Notice no change was made to R1 and R2 R1 = Row One and R2 = Row Two and R3 = Row Three
24. Step 7: Finalize Solution Now: X + Y - Z = -2 Y - Z= -3 Z = 2 Then: Lastly: X + Y - Z = -2 X + (-1) – 2 = -2 X-3 = -2 X= 1 Y - Z = -3 Y - 2= -3 Y = -1
25. Step 8: Double check the solution you found X + Y - Z = -2 2X – Y + Z= 5 -X+2Y+2Z = 1 Original Equations (1) + (-1) – (2) = -2 2(1) – (-1) + (2)= 5 -(1)+2(-1)+2(2) = 1 It Works!!
26. Question Four Now to wrap it all up we want to determine how much it actually costs to get into the fair and enjoy this fun get together! As you saw on the clip, one day at the fair just isn’t enough!! At the gates on opening day they are selling one day passes as well as bonus three day passes. We were only able to collect the data for 2 particular gates on this day. Gate A sells 2,090 day passes and 980 three day passes. Gate B sells 1,807 day passes and 712 three day passes. If Gate A collected $31,290 and Gate B collected $24,753, how much does it cost to by a one day pass and a three day pass?
27. Helpful Advice For this problem finding the determinate and the inverse would be a very useful tool.
28. Set up a Matrix Matrix Format Matrix specific to this example