Answer:
The description of the given point can be defined as follows:
Explanation:
In option a:
List the articles authored by John Smith
[tex]\pi[/tex]Article.title ([tex]\delta[/tex](Author.authorID=Authoring.authorID)^ (Article.articleID=Authoring.articleID)^ (Author.name=’John Smith’) (Article [tex]\times[/tex] Authoring [tex]\times[/tex] Author))
In option b:
Listed all John Smith but also Marc Antoine's articles
[tex]\pi[/tex] Article.title ([tex]\delta[/tex](Author.authorID=Authoring.authorID)^ (Article.articleID=Authoring.articleID)^
(AUTOR.NAME='JohnSmith 'or "John Smith'Marc Antoine" )
(article [tex]\times[/tex] Authoring [tex]\times[/tex] Author)
In option c:
Review the John Smith co-authors (authors co-authors with John Smith)
ID (Author.authorID = Authoring.authorId)^(Article.articleID =Authoring.articleID)^(Article.articleID = Authoring.articleID)^
(Author.name='John Smith') (Paragraph x Author)
[tex]\pi[/tex] Article.title ([tex]\delta[/tex](article.item ID = Addresse.itemID)^(Authoring.art.item = art)
(Paragraph [tex]\times[/tex] Authoring)
In option d:
List all of that year's papers
[tex]\delta[/tex] (Article.year=2019)
In option e:
List the authors without a database post
authorInDatabase = [tex]\pi[/tex] Authoring.authorID (δ(Author.authorID=Authoring.articleID) )
(Author [tex]\times[/tex] Authoring)
authorTotal = Author.authorID (δ (Author.authorID=Authoring.articleID)
(Author [tex]\times[/tex] Authoring)
AuthorsWithNotWithArticles = authorTotal - AuthorInDatabase
In option f:
Listed of writers that have co-authored both published publications to John Smith
Authors = [tex]\pi[/tex] Book.authorID ([tex]\delta[/tex] Author.authorID)^(Article.articleID = Authoring.articleID)^ Authoring.articleID)^ Book Authors
(Paragraph [tex]\times[/tex] Authoring) (Author.name='John Smith')
[tex]\pi[/tex] Author.name ([tex]\delta[/tex] (Art.articleID = Author.articleID)^(Authoring.authorID = Authoring. Authoring. AuthorID)
(Physician[tex]\times[/tex] Authoring)
Use a recursion tree to determine a good asymptotic upper bound on the recurrence T(n) = 4T(n/2 + 2) + n. Use the substitution method to verify your answer.
Answer:
Follows are the solution to this question:
Explanation:
The scale of the subproblem for a node is [tex]\frac{n}{2^i}[/tex] at depth.
The tree then has lg n + 1 and [tex]4^{lg n} = n^2[/tex]leaves.
Complete costs for all depth I nodes for I = 0. 1 , 2, ......, lg n-1 is:[tex]4^i ( \frac{n}{2^i}+ 2 ) = 2^i n + 2\times 4^i.[/tex]
[tex]T(n)= \sum_{ i = 0}\lg n - 1( 2^i n + 2 . 4^i )+ \Theta (n^2)\\\\[/tex]
[tex]= \sum_ {i = 0} \lg n - 1 2^i n + \sum_{i = 0} \lg n - 12 \times 4^i + \Theta (n^2)\\\\= [ \frac{ 2\lg n - 1}{ 2 - 1} ]n + 2 \times [ \frac{ 4\lg n - 1}{ 4 - 1} ]n + \Theta (n^2)\\\\= ( 2\lg n - 1) n] + (\frac{2}{3})( 4\lg n - 1)+ \Theta (n^2)\\\\= (n-1)n - \frac{2}{3} (n^2 -1) +\Theta (n^2)\\\\= \Theta (n2)\\[/tex]
verfify the value:
[tex]\to T(n) \leq c (n^2 - dn) \\\\T(n) = T(n) = 4T((\frac{n}{2}) + 2) + n \\\\ \leq 4c [ ((\frac{n}{2}) + 2)2 - d((\frac{n}{2}) + 2) ]+ n \\\\ \leq 4c [ (\frac{n^2}{4} + 2n + 4) - \frac{dn}{2} - 2d)]+ n \\\\\leq cn2 + 8cn + 16c - 2cdn - 8cd + n\\\\\leq cn2 -cdn + 8cn + 16c - cdn - 8cd + n\\\\\leq c(n2 -dn) - (cd- 8c - 1)n - (d - 2). 8c\\\\\leq c(n2 -dn),\\\\[/tex]
Where there is the last stage for [tex]\to cd - 8c -1 \geq 0[/tex].
any two example of numeric
Answer:
Numeric is anything of, relating to, or containing numbers. The numbering system consists of ten different digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. If a value is an alphanumeric, it contains letters and numbers.
Justin works for an automobile manufacturer. The company is designing a new car that enables the users to use the car as a mobile office. To achieve this, the car must provide an internet connection as an access point, mirror a smartphone screen on the LED dash display, and have a hands-free system where drivers can use voice controls to browse their phone's contact list, make and receive hands-free phone calls, and use navigation apps. Which technology should he use and why
The best technology that he should use to achieve the desired usage as described is; Bluetooth Technology
What is Bluetooth technology?Bluetooth is a wireless technology that makes use of short-range RF transmissions.
This method of operation of bluetooth is to aid users in connecting wirelessly to a wide range of computing and telecommunications devices by providing rapid connections between Bluetooth-enabled devices. Furthermore, Bluetooth provides the ability to mirror screens and use voice controls.
From the design of the new car, the best technology to be used is Bluetooth.
Read more about wireless technology at; https://brainly.com/question/24395331
Which option is used once a sparkline has already been inserted to format it to a particular type and color? Insert tab, Sparklines group Insert tab, Filters group Sparklines Design contextual tab Sparklines Format tab
Answer:
A. Insert tab, Sparklines group
Explanation:
Answer:
a your welcome
Explanation:
Explain the following IT terms Network: Packet: Router: IP address: Server: LAN: WAN: Bus topology: Ring topology: Star topology: Mesh topology: ISP: Dial-up: DSL: Cable Broadband: Fiber Optic: Mobile: explain all pls
Answer:
IT terms Network:
Networking, also known as computer networking, is the practice of transporting and exchanging data between nodes over a shared medium in an information system.
Packet: Networking, also known as computer networking, is the practice of transporting and exchanging data between nodes over a shared medium in an information system.
Router: A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet.
IP address: For the most part, an IP address tells you the city, ZIP code, or area code of your ISP, as well as your ISP's name. What can an IP address tell you? To some degree, your physical location and also the name of your ISP
Server: A server operating system, such as Windows Server or Linux, acts as the platform that enables applications to run. The operating system provides applications access to the hardware resources that they need and enables network connectivity. The application is what enables the server to do its job.
LAN: A local area network (LAN) consists of a series of computers linked together to form a network in a circumscribed location. The computers in a LAN connect to each other via TCP/IP ethernet or Wi-Fi. A LAN is normally exclusive to an organization, such as a school, office, association or church.
WAN: A wide area network (also known as WAN), is a large network of information that is not tied to a single location. WANs can facilitate communication, the sharing of information and much more between devices from around the world through a WAN provider.
Bus topology: also known as line topology, is a type of network topology in which all devices in the network are connected by one central RJ-45 network cable or coaxial cable. The single cable, where all data is transmitted between devices, is referred to as the bus, backbone, or trunk.
A ring topology: is a network configuration where each networked device is connected to two other devices on either side of it to form a circular “ring” data path. When data is transferred in a ring topology, the data is sent in one direction along the single continuous pathway.
Star topology: is a network topology in which each network component is physically connected to a central node such as a router, hub or switch. In a star topology, the central hub acts like a server and the connecting nodes act like clients.
A mesh topology: is a network setup where each computer and network device is interconnected with one another. This topology setup allows for most transmissions to be distributed even if one of the connections goes down. It is a topology commonly used for wireless networks.
Your ISP: is the company that gets you onto the Internet – your home Internet or mobile data provider. If your ISP is spying on you, it means they can use or sell your browsing history to others for things like creepy ads that follow you around the Internet or to junk mail providers.
Dial up: relating to or being a standard telephone line used for computer communications also : accessible via a standard telephone line a dial-up Internet provider.
DSL: DSL stands for Digital Subscriber Line, and describes a family of technologies used for digital data transmission and connection to the Internet. It is a type of broadband communication service available to homes and businesses that uses existing phone lines without interrupting telephone use.
Cable Broadband: Cable broadband connects your home to a fibre cabinet in your area. However, instead of using copper wires, cable broadband uses coaxial cables to connect to the cabinet, giving you a much faster internet connection than the traditional copper phone line cables used for 'superfast' broadband connections (up to 60Mbps)
Fiber optics: is used for long-distance and high-performance data networking. It is also commonly used in telecommunication services, such as internet, television and telephones.
A mobile network (also wireless network) route's communications in the form of radio waves to and from users. It is composed of base stations that each cover a delimited area or "cell." When joined together these cells provide radio coverage over a wide geographic area.
Explanation:
visual basic is an example of...
Answer:
Basic Programming language
List 3 tanks that a computer can perform
Answer:
Input, output, processing, and storage
Explanation:
Computers deal with input, how much information and letters and whatnot is typed or inputted on a computer. They also deal with output, the result of an input value. In between the input and output stages, they process the information before returning the output value. They have storage for history and a short RAM list, so they can remember all the input values inserted recently.
When will a student most likely need to read a text aloud?
when doing homework
when studying for a test
when preparing a speech
when taking notes in class
Answer:When preparing a speech(c)
Explanation:
Answer:
C. when preparing a speech.
Explanation:
the only answer that makes sense :p
Analyze and interpret this statement "life is not a grand harmony, conflict exist"
Answer:
Life is not always easy and fair. There will be ups and downs, happy and sad. You have to fight for for everything good in this world because nothing good comes easy.
What are some of the challenges of note-taking? Check all that apply.
It can take up a great deal of time in class.
It can lessen preparation time before tests.
It does not support retention for the student.
It can be distracting in the middle of a lecture.
It can cause the student to miss information.
Explanation:
it can take up a great deal of time in class.
it can be distracting in the middle of a lecture.
it can cause the student to miss information.
These are some of the challenges of note taking:
It can take up a great deal of time in class.It can be distracting in the middle of a lecture. It can cause the student to miss information.Note-taking can be described as the jotting of important details on a book or notepad during a lecture or class.
Note taking is very important because the student can also refer to it when needed to extract important information.
With its advantages, it also has some disadvantages for the learner.
The learner may become too engrossed in his note taking and end up missing out on other things that are being done in the classroom.
Also it could cause the student to stop listening further to what is being taught. They may become too engrossed with copying what they had heard earlier.
Read more on note-taking here: https://brainly.com/question/17184401
Describe the big data life cycle. Which step do you think is most useful and why?
Answer:
Big data lifecycle consists of four phases: data collection, data storage, data analysis, and knowledge creation. Data collection phase consists of collecting data from different sources. In this phase, it is important to collect data from trusted data sources.
I think business cases analysis is the most useful step because (BCA) provides a best-value analysis that considers not only cost but other quantifiable and non-quantifiable factors supporting an investment decision. This can include but is not limited to, performance, producibility, reliability, maintainability, and supportability enhancements
Explanation:
mark me brainliest
Which is a benefit of collaboration and teamwork?
Answer:
Increases efficiency and productivity
Explanation:
A benefit of collaboration and teamwork is increased productivity and efficiency.
Collaboration and teamwork offer several benefits that can positively impact individuals and organizations as
1. Enhanced creativity and innovation: Collaboration brings together diverse perspectives, experiences, and skills. When individuals work together as a team, they can brainstorm ideas, challenge assumptions, and generate innovative solutions.
2. Increased productivity: Teamwork enables the division of tasks among team members, allowing for simultaneous progress on multiple fronts.
3. Improved problem-solving and decision-making: When multiple minds come together, there is a broader range of knowledge and expertise available to tackle complex problems.
4. Enhanced communication and interpersonal skills: Collaborating in a team environment necessitates effective communication and active listening.
5. Increased motivation and engagement: Working as part of a team can foster a sense of belonging and shared purpose. Collaboration allows team members to feel supported and valued, leading to increased motivation and engagement.
6. Building strong relationships and trust: Collaboration requires trust, respect, and cooperation among team members. Through collaborative experiences, individuals can build strong professional relationships based on mutual support and shared goals.
Learn more about Collaboration and teamwork here:
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#SPJ4
A Software application that access web application and websites
Answer:
Web Application
Explanation:
#carryonleraning
Microsoft PowerPoint is the best example of Multimedia Presentation Software. *
True or false
Answer:
true yes it is a good example
Which term best describes the role of a printer in a network?
O shared resource
O server
O port
O router
Answer:
Correct answer is Shared Resource.
Explanation:
Answer:
Shared Resource
Explanation: Because multiple clients can use it
Write a function named `freq(l)` that takes a list `l` of numbers
and returns a tuple of the most frequent number and its frequency.
For example, `freq([1,2,3,4,5,2,3,4,5,3,4,5,4,5,4]) returns (4,5)
because number 4 appears 5 times in this list. If multiple numbers
appear as most frequent, then the first element of the returned
tuple is a list of all those numbers. For example,
freq([1,2,3,1,2,1,2,3,1,2]) will return ([1,2], 4) because both
1 and 2 appear 4 times in the list.
The function named `freq(l)` that takes a list `l` of numbers and returns a tuple of the most frequent number and its frequency is as follows;
def freq(l):
s = { x for x in l }
lt = [ (x, l.count(x)) for x in s ]
mn = max(lt,key=lambda item:item[1])[1]
r = ([ x for (x,v) in lt if v == mn], mn)
return r
print(freq([1,2,3,4,5,2,3,4,5,3,4,5,4,5,4]))
Code explanation;The code is written in python.
we defined a function named "freq" and it accept an argument named l. The second line we get the unique values using sets.The variable "lt" is use to store list of tuple containing unique values and their occurrences in the list."mn" is a variable use to store the maximum number of occurrences.Then, the variable r is use to store the resulting tuple, filtering out all the items with less occurrences than the maximum.we returned the variable "r".Then we call our function with the parameter.learn more on python here: https://brainly.com/question/4503928
How to trigger watchers on initialization in vue.js ?
Answer:
variable when the component is mounted. This triggers the watchers which then triggers an emit i have in the watcher. I do not want the emit to happen when the variable is only being initialized. The variable is from the data section of the vue component.
List two advantages and disadvantages on conversion of number systems
Answer:
Look at the explanation!!
Explanation:
Computer number systems are built around the core processor. Most of these are binary, but trinary machines have also been considered.
Working in binary is faster, since one already handles the carry, and there is no weird carry rules like BCD would use. On the other hand, it is possible to implement this in hardware too.
On the other hand, one has to convert stuff from binary to something more readable, like decimal or whatever.
Computers do not store negative numbers as such. Instead, they use a cycle of 256 (or some power), and negative numbers are given as 256-n, for example, -5 would be 251, or worse still 4294967291, that is in hex, FFFFFFFFB, since adding 5 to this would give 0 = (1)00000000, the 1 is lost.
In ternary numbers, the values are different, and a balanced ternary, with digits of -1, 0, 1, would express negative numbers quite easily, eg -5 is 0000000M11, that is -9+3+1 = -5. It’s still possible to determine the sign of this number, but you have to pass it through a special gate to find the first non-zero digit, ie here M.
Select the correct answer.
Which is an attribute of analog communication?
A. Using a cell phone
B. Using cables to transmit data
C. Using binary
D. Using a DVD
ASAP pls! 20 points!
Answer:
b
Explanation:
4. All executed programs in the windows
environment is displayed on
the?
All executed programs in the windows environment are displayed on the Windows manger.
What is a program?In Computer programming, a program can be defined as a sequence of instructions that are written in a specific programming language and can be executed or interpreted by a computer.
The programs that are executed in the windows environment by the operating system (OS) of a computer system are generally displayed on the Windows manger and stored in the computer's main memory, which is the random access memory (RAM).
Read more on programs here: https://brainly.com/question/23275071
what amount of memory enough to store alatter of the alphabet or store a small number
Answer:
It can be "ON" or "OFF". So it can store the numbers 1 and 0, but it certainly doesn't have the capacity to store a letter of the alphabet.
Explanation:
A computer can perfome three basic types of operations, mathematical, logical and ...........
Answer:
The basic operations performed by a computer are arithmetic operations, logical operations and storage and relative functions.
Explanation:
Answer:
the three basic operations performed by a computer are 1. mathematical or arithmetic operations. 2. logical operations
3 storage and relative operations.
The 2960 switches have been taken out of the box and cabled, and PC2 can communicate through R1 with the rest of the IP network. However, no configuration has been added to either SW1 or SW2. As a result, the network engineers sitting at a management station to the right of R1 cannot ping or telnet to SW2. Required:
What configuration commands, when entered in the correct order on SW2, allow the network engineer to ping or telnet to SW2 from the management station?
The correct order of configuration commands on switch 2 (SW2) that would allow the network engineer to successfully ping or telnet to SW2 from the management station are:
Enter IP address of switch 2 (SW2).Set IP default-gateway.Configure interface VLAN 1.No shutdownWhat is a command?A command can be defined as a set of instructions that are typically used to configure a network device such as a switch, so as to make it active on a computer network and enable it perform certain tasks automatically during network communication.
In Computer networking, commands can be used to ensure the interfaces (ports) on a switch are active and open for connections from other network devices such as:
RoutersWorkstations (computers)In this scenario, the network engineer should use the following configuration commands on switch 2 (SW2), so as to successfully ping or telnet to SW2 from the management station are:
Enter IP address of switch 2 (SW2).Set IP default-gateway.Configure interface VLAN 1.No shutdownRead more on a switch here: https://brainly.com/question/13243868
40 POINTS AND IF CORECT I WILL MARK AS BRAINLIEST
Which part of project management involves determining the overall work?
Breakdown
Incomes
Scope
Time
Answer:
I think it's income.
Explanation:
Answer:Time because stermining your overall work and what you’ve done includes time
Write a program that: program starts; declares and initializes to .06625 constant float variable NJSALES_TAX; declares and initializes to 1000 an integer variable total; declares and initializes to zero a float variable grand_total; prompt and input on new line total; calculate grand_total to equal total plus (total*SALES TAX); if grand_total <= 1000 print on new line "Grand total is less than or equal to 1000 it is $" and the grand_total to two decimal places; else if grand_total between 1000 <= 2000 print on new line "Grand total is more than 1000 less than or equal to 2000 it is $" and the grand_total to two decimal places; else print on new line "Grand total is greater than 2000 it is $" and the grand_total to two decimal places; just before ending print on new line "Program finished!" then terminate program.
Answer:
Written in C++
#include<iostream>
using namespace std;
int main() {
const float SALES_TAX = 0.06625;
int total = 1000;
cout<<"Total: ";
cin>>total;
float grand_total = 0;
grand_total = total + total * SALES_TAX;
if (grand_total <= 1000) {
cout<<"Grand total is less than or equal to 1000 it is $";
printf("%.2f", grand_total);
}
else if (grand_total > 1000 && grand_total <= 2000 ) {
cout<<"Grand total is more than 1000 less than or equal to 2000 it is $";
printf("%.2f", grand_total);
}
else {
cout<<"Grand total is greater than 2000 it is $";
printf("%.2f", grand_total);
}
cout<<"\nProgram finished!";
return 0;
}
Explanation:
I've added the full source code as an attachment where I use comments to explain difficult lines
I’m select circumstances is a permissible character on the Mac operating system
Answer: /
Explanation: Answer
Name and describe the seven types of things that can be added to websites to increase audience engagement. hurry please :3
Answer:
Java script functions, example, buttons that perform an action or on click.Responsive webpages. This is so the screen can resize depending on your device.Pagination, where a user can use a link to get to another part of the same page if it is too long.Styling. This is essential to good-looking web pages.Customization. This is so that the user can change the page to their liking. It is complicated, but different than styling.Good GUI. Graphic user interface is interactive, and is used to create login forms and such.Images. Images can describe things more than words and can have very deep meaning.Hope this helps!
Colin found a website he would like to use for his research assignment. What should he look for to determine if the website is reliable?
He should determine if the website is entertaining.
He should look for goods and services on the website.
He should look for opinions on the website.
He should look for when the website was last updated.
Answer:
He should look for when the website was last updated.
Explanation:
if the website is out of date, then the sources may not be as reliable or accurate
C a n_ I_P l s_H a v e_S u b s_O n_ Y T
Answer:
Ok
Explanation:
Answer: No
Explanation:
Josh's boss asked him to write a letter to their customers explaining some upcoming price increases, but Josh was in a hurry to get off work, so he didn't take the time to get the information he needed to explain the increase. As a result, the e-mail was confusing and disorganized. Josh's e-mail has the characteristics of _____.
ineffective communication
workplace communication
effective communication
barriers to communication
Answer:
ineffective communication
Explanation: