select the value of the sum ∑k=−23k2.
a. 3
b. 9
c. 14
Answers
The value of the sum ∑\(k= - 23k2\) is 9 (option b).
The given sum involves the summation of \(k^2\) from\(k=-2\) to \(k=3.\)Evaluating each term of the sum and adding them up, we get
\((-2)^2 + (-1)^2 + 0^2 + 1^2 + 2^2 + 3^2 = 4 + 1 + 0 + 1 + 4 + 9 = 19.\)
Therefore, the value of the sum is \(19/2 = 9.5\). However, since the possible options are integers, we choose the closest integer to 9.5, which is 9 (option b).
In conclusion, the value of the sum ∑\(k= - 23k2\) is 9 (option b). To solve this problem, we simply needed to evaluate each term of the sum and add them up. It is important to pay attention to any restrictions on the possible solutions, such as in this case where the options were integers.
The closest option is 9. Therefore, the correct answer is b.
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Related Questions
BRAINLIEST 14 points
The Great Firewall of China _____. Select 4 options.
blocks websites
filters all emails
filters social media
filters web searches
jams signals
Answers
Answer:
the first four options
Explanation:
they make the most sense
The Great Firewall of China is designed and developed to:
Block websites.Filter all emails.Filter social media.Filter web searches.What is the Great Firewall of China?The Great Firewall of China can be defined as a set of legislation and network security protocol that domestically monitors, regulates and controls inbound and outbound Internet traffic in the People's Republic of China, based on set aside security rules.
In this context, the Great Firewall of China is designed and developed to domestically:
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Follow your teacher's instruction to__________________your computer after each use.
Answers
Answer: proper shutdown
Hope that helps!
Write a reflective essay about the benefits of using productivity tools in Microsoft Word
Answers
Answer:
Using productivity tools in Microsoft Word can provide numerous benefits for individuals looking to streamline their work processes and improve productivity. As a writer, I have found that utilizing these tools has not only saved time, but also improved the quality of my work.
One of the most significant benefits of using productivity tools in Microsoft Word is the ability to automate repetitive tasks. For example, the use of templates can help to standardize document formatting, saving me time that would otherwise be spent manually adjusting margins, fonts, and spacing. The ability to create and save custom styles has also allowed me to quickly apply consistent formatting throughout a document. Additionally, features such as AutoCorrect and AutoText have helped me to eliminate errors and speed up the writing process by allowing me to insert frequently-used text and phrases with just a few keystrokes.
Another benefit of productivity tools in Microsoft Word is the ability to collaborate with others more efficiently. For example, the use of track changes and comments has allowed me to easily review and edit documents with colleagues, without the need for multiple versions or back-and-forth emails. The ability to share documents in real-time using cloud-based services such as OneDrive or SharePoint has also been invaluable, allowing me to work with others regardless of location and ensuring that everyone is working on the most up-to-date version of the document.
Finally, the use of productivity tools in Microsoft Word has helped me to improve the quality of my writing. Features such as the built-in thesaurus, grammar and spell check, and readability statistics have allowed me to catch errors and improve the clarity and coherence of my writing. The ability to access research materials and sources within the application has also helped me to streamline the research process and ensure that my writing is well-informed and accurate.
Overall, the benefits of using productivity tools in Microsoft Word are numerous and have helped me to improve my efficiency, collaboration, and the quality of my work. By utilizing these tools, I have been able to save time, reduce errors, and work more effectively with others. As a writer, I highly recommend the use of productivity tools in Microsoft Word to anyone looking to improve their productivity and streamline their work processes.
you hide three worksheets in a workbook and need to unhide them. how can you accomplish this? select an answer: type the name of the hidden worksheet on the keyboard, then click unhide. right-click any visible sheet, then select which worksheet you want to unhide. right-click the button, then select which worksheet you want to unhide. click the view menu, then select unhide worksheets.
Answers
To unhide the hidden worksheets in a workbook, you can follow a simple process in Microsoft Excel.
The correct way to unhide worksheets is by right-clicking any visible sheet, then selecting which worksheet you want to unhide. Follow these steps:
Open the workbook containing the hidden worksheets.Right-click on the tab of any visible sheet at the bottom of the screen.From the context menu that appears, select "Unhide."A new dialog box will open, displaying a list of all hidden worksheets.Click on the worksheet you want to unhide and then click the "OK" button.Repeat steps 2-5 for each hidden worksheet you want to unhide.
By right-clicking any visible sheet and selecting the worksheet you want to unhide from the context menu, you can easily unhide multiple hidden worksheets in a workbook.
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name two different colors used in the python program file window.name the type of program content that has each color ......
whoever answer this correct i will rate them 5 stars and a like .....
please urgent
Answers
In the Python program window, black is used for code and syntax, while white is used as the background.
How is this so?1. Black - The color black is typically used for the program's code and syntax. It represents the actual Python code and includes keywords, functions, variables, and other programming constructs.
2. White - The color white is commonly used as the background color in the program window. It provides a clean and neutral backdrop for the code and makes it easier to read and understand.
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Need answer ASAP!!!!
Answers
Hi,
I tried answering this. Lol. Look at the image.
help pls
cmu cs 0
4.1.2.1 Creating Groups checkpoint 1
Answers
Answer: For each group, you want to add, click the [ +] sign and select it from the list that shows. A Check Point Host can have multiple interfaces but no routing takes place. It is an endpoint that receives traffic for itself through its interfaces. (In comparison, a Security Gateway routes traffic between its multiple interfaces.)
Explanation: The Check Point Rule Base must not have these objects. If it does, the Security Management Server will not generate Access Lists. OSE devices report their network interfaces and setup at boot time. Each OSE device has a different command to list its configuration. You must define at least one interface for each device, or the Install Policy will fail.
Select the correct answer from each drop-down menu. Which similar computer network components connect multiple devices? and are similar computer network components that connect multiple devices in a computer network.
Answers
The similar computer network components connect multiple devices is Switches
A Network Switch and Network Hub are similar computer network components that connect multiple devices in a computer network.
What is the computer network?Switches connect network devices at Layer 2 of the OSI model. When devices are connected to a switch, it facilitates communication between them by forwarding data packets based on their MAC address.
Packet switching is done by switches with multiple Ethernet ports for device connection. Switch ports create network segments for devices to communicate and improve network performance.
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Which similar computer network components connect multiple devices?
A _____ and ________ are similar computer network components that connect multiple devices in a computer network.
(01.01 LC)
Programmers perform which of the following tasks?
Build and maintain network connections
O Create web and mobile applications
O Design graphics for websites
Repair computers and servers
Answers
Answer:
Create web and mobile applacations
Explanation:
Programmers primarily build and maintain software applications, including web and mobile applications.
What is software?Programmers typically work with software, which is a collection of instructions and programmes that instruct a computer or other electronic device on what to do.
They create, test, and maintain software applications for desktops, mobile devices, and the web using programming languages such as Java, Python, and C++.
Programmers create and maintain software applications, such as web and mobile applications.
They may also design the application's user interface and user experience, but they are not typically in charge of designing graphics for websites.
Furthermore, while programmers may be involved in troubleshooting and resolving issues related to the software application they have created, they are not typically in charge of repairing hardware such as computers and servers.
Thus, the correct answer is "Build and maintain network connections".
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set the "home" link to a root-relative path that navigates to .__
Answers
A root-relative path is a URL that starts with a forward slash (/) and refers to a resource on the same domain as the current page, but from the root directory.
In this example, the link navigates to the "index.html" page located in the root directory of the website. You can replace "index.html" with the name of the page or directory you want to link to. It's important to note that root-relative paths are sensitive to changes in the site's directory structure.
If you move the linked page or directory to a different location, the path may no longer work. It's also a good practice to test all links on your website regularly to ensure they are still working correctly.
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What parts of the computer does it not need to function?
Answers
N Sistema tecnológico es: * A). Es un sistema que se usa solo en computadoras B) Es todo lo referente a tecnología como computadoras y celulares C) Es un conjunto de elementos y procesos que interactúan entre sí, para lograr la fabricación de un producto o servicios y que a su vez satisface necesidades sociales. D )Elaborar un producto con materiales Resistentes para las personas.
Answers
Answer:
C) Es un conjunto de elementos y procesos que interactúan entre sí, para lograr la fabricación de un producto o servicios y que a su vez satisface necesidades sociales.
Explanation:
Un sistema tecnológico se define como un conjunto de elementos y procesos que interactúan entre sí, para lograr la fabricación de un producto o servicio y que a su vez satisface necesidades sociales.
Por lo tanto, todos los dispositivos y máquinas que utilizamos para lograr varios fines pueden clasificarse como dispositivos tecnológicos.
Por ejemplo, un teléfono inteligente es un ejemplo típico de un sistema tecnológico.
Answer:
c
Explanation:
Hey, can anyone please help me?
Answers
Answer:
i think the answer is b not sure tho
Explanation:
mb for being rly late lol hopefully this helps :)
What symbol do you use to choose a feature for your notes on Notion?
Answers
Answer:
The core element of notions is called blocks from where all the content bring forth. It has around fifty blocks.
Explanation:
Notion is the newest and fastest growing productivity tools for the recent memory. Notions has been reached out to the fight club meme status. When it is plain, it is easy to use and start. But even after it many of the users have difficulty in using this tools when it comes to the powerful cases.
There are some steps through that one can start to use this tool for their productivity.
To built the blocks
To organize the notions.
To create the habit tracker
To move the pages in notions
Data base and the views.
Type / - type table - select online- full page
A large company such as a retail store or airline reservation system uses a ______ computer that acts as the central computer in a network.
Answers
Answer:
A large company such as a retail store or airline reservation system uses a mainframe computer that acts as the central computer in a network.
Explanation:
Mainframe computers are often used as servers. They are high-performance computers used for large-scale computing purposes that require more availability and security than what a smaller-scale machines can offer.
Ray received a meeting request through his outlook account and clicked accept. Which of these will occur? Check all that apply. - Rays other meetings for that day will be automatically canceled. -The meeting organizer will be notified that Ray excepted the request. - Rays contact information will be updated on the meeting agenda. - The meeting will be added to Ray’s Outlook calendar. - The meeting organizers contact information will be updated in Ray’s contact list. 
Answers
Answer:
2 3 and 4
Explanation:
what construction work is the tender for
Answers
Answer:
A tender is a submission made by a prospective supplier in response to an invitation to tender. It makes an offer for the supply of goods or services. In construction, the main tender process is generally for the selection of the contractor that will construct the works.
Explanation:
Tendering Process under construction is a process of submitting a proposal to undertake government construction projects. Depending on the language in the bid proposal the construction companies make their bids for submission, and if accepted, a legally enforceable contract is created.23 Mar 2017
Write a program that accepts 5 number and arrange them in ascending order
Answers
5 does this help?
5
5
5
the information kept about a student includes lastname, firstname, major code, number of units completed, and grade point average. write a c type declaration for a data structure that will hold the information about a student.
Answers
The C-type declaration for a data structure that will hold information about a student is:
struct Student {
char lastName[50];
char firstName[50];
int majorCode;
int numUnitsCompleted;
float gpa;
};
This declaration creates a struct named Student that contains five fields: lastName and firstName are character arrays that can hold up to 50 characters each, representing the student's last and first name respectively; majorCode is an integer that represents the student's major; numUnitsCompleted is an integer that represents the number of units the student has completed; and gpa is a floating-point number that represents the student's grade point average.
By using a struct, we can group related data together and refer to it as a single entity, which can simplify our code and make it easier to manage and manipulate data.
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what must you do to enable the computer management console to connect to serverb?
Answers
Answer:
Configure Server Manager properties
Explanation:
to see how some of the hosts on your network react, winston sends out syn packets to an ip range. a number of ips respond with a syn/ack response. before the connection is established he sends rst packets to those hosts to stop the session. winston has done this to see how his intrusion detection system will log the traffic. what type of scan is winston attempting here?
Answers
Winston is attempting a SYN scan, which is a type of network reconnaissance technique used to identify open ports on a target network.
What type of scan is Winston attempting by sending syn?Winston is attempting a SYN scan, which is a type of network reconnaissance technique used to identify open ports on a target network.
In a SYN scan, the attacker sends SYN packets to a range of IP addresses and waits for SYN/ACK responses from hosts that have open ports.
Once a response is received, the attacker sends a RST packet to close the session before the connection is established.
This technique allows the attacker to determine which ports are open without completing the three-way handshake required to establish a connection, which makes it difficult to detect.
Winston is using this technique to test his intrusion detection system's ability to log such traffic.
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which command rebuilds the boot sector for the active system partition?
Answers
The command that rebuilds the boot sector for the active system partition is "bootrec /fixboot". This command is useful in cases where the boot sector has been corrupted or damaged, preventing the computer from booting up properly.In order to use the "bootrec /fixboot" command,
follow these steps:1. Insert the Windows installation media and boot from it.2. Choose the language and other preferences, and click on the "Next" button.3. Click on the "Repair your computer" option at the bottom-left corner of the screen.4. Select the operating system you want to repair, and click on the "Next" button.5. Choose the "Command Prompt" option from the list of repair options.6. Type in the command "bootrec /fixboot" and press the Enter key.7. Wait for the command to complete, and then restart the computer. This should fix any issues with the boot sector and allow the computer to boot up normally again.
Note that the "bootrec /fixboot" command should only be used as a last resort, after trying other troubleshooting steps such as running a virus scan or repairing the Master Boot Record (MBR). It should also be used with caution, as an incorrect command or typo could cause further damage to the system.
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What percentage of STEM-related degrees awarded in the 2002-2003 academic year were doctorates?
16.7 percent
0 34.8 percent
O 14.6 percent
O 12.9 percent
Answers
Answer:
34.8
Explanation:
I just took the test!
what is the name of the openoffice presentation software?
Answers
Answer:
Impress
Explanation:
how do you indicate 1 item in cow 's foot notation
Answers
What is the definition of a performance, such as a poetry reading? O A. A work of art installed in public OB. A presentation of creative works OC. A collection of printed works D. A community-sponsored potluck
Answers
Answer:
(B) A presentation of creative works.
Explanation:
Because performing is similar to presenting and poetry is similar to free writing, or creative words.
how long it takes for a software package to respond to user's requests is called: a. activation time. b. lag time. c. response time. d. recurrent time. e. run time.
Answers
The term for the duration it takes for a software package to respond to user requests is response time. The correct answer is c. response time.
Response time refers to the duration it takes for a software package or system to respond to a user's request or input. It measures the time from when the user initiates a command or action to when the system completes the processing and provides a response.
Response time is an important performance metric that directly impacts user experience and satisfaction. It is influenced by various factors, including the complexity of the software, system resources, network latency, and the efficiency of underlying algorithms and processes.
Activation time (option a) typically refers to the time it takes to start or initialize a software package or system, rather than specifically addressing user requests.
Lag time (option b) generally refers to delays or gaps in data transmission or processing. While it can be related to response time, it is a broader term that encompasses delays beyond user interactions.
Recurrent time (option d) and run time (option e) are not specifically related to the time taken for a software package to respond to user requests. Recurrent time may refer to the time between repeated occurrences of an event, while run time generally refers to the duration of program execution.
In summary, response time is the term used to describe the duration it takes for a software package or system to respond to user requests.
So, option c is correct.
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what are some technologies that professional coders use to be better at their job
please list at least 5
Answers
Answer:
Software application developer.
Web developer.
Computer systems engineer.
Database administrator.
Computer systems analyst.
Software quality assurance (QA) engineer.
Business intelligence analyst.
Computer programmer.
Explanation:
Software application developer.
Web developer.
Computer systems engineer.
Database administrator.
Computer systems analyst.
Software quality assurance (QA) engineer.
Business intelligence analyst.
Computer programmer.
C++
Javascript
Coding Training Courses
how to make a benefit analysis paper
Answers
The ways to make a benefit analysis paper are:
Establish a background for Your Analysis Identify Your Costs as well as the Benefits Assign a given Amount in dollars or Value to all of Cost and BenefitLink all the Total Value of Benefits and Costs and then make comparison.What is a benefit analysis report?A cost-benefit analysis is known to be the act of making a comparison of the projected or the estimated costs as well as the benefits (or a given opportunities) that is known to be linked with a project decision to know or tell if if it makes any sense from a given business perspective.
Note that the Benefit Analysis report gives a kind of clear and concise form of comparisons of work scenarios to reduce over payment and as such, The ways to make a benefit analysis paper are:
Establish a background for Your Analysis Identify Your Costs as well as the Benefits Assign a given Amount in dollars or Value to all of Cost and BenefitLink all the Total Value of Benefits and Costs and then make comparison.Learn more about benefit analysis from
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What are some ways you can give staying off your phone a "boost" and make it easier to do?
If you're trying to break a bad habit, what are some things you can do so that you don't slip back into old ways?
Please help this is due today and I really need help.
Answers
Answer:
go do something outside and leave your phone inside to charge
Explanation: