Thiết kế biểu đồ thực thể liên kết và tập lược đồ cơ sở dữ liệu quan hệ cho các bài toán quản lý sau:
Bài toán 1. Bạn cần một cơ sở dữ liệu để quản lý thông tin về các tạp chí. Với mỗi tạp chí bạn cần quản lí tên tạp chí, số ISSN (mã số công bố của tạp chí), số phát hành và năm phát hành. Dữ liệu về các bài báo trong tạp chí bao gồm: tiêu đề bài báo, trang bắt đầu và trang kết thúc của bài báo trong tạp chí (nghĩa là bài báo bắt đầu từ trang nào, và kết thúc ở trang nào trong tạp chí). Giả thiết rằng không có hai bài báo nào có cùng tiêu đề. Mỗi bài báo được viết bởi một vài tác giả. Mỗi tác giả bạn sẽ lưu các thông tin về tên, địa chỉ email và địa chỉ cơ quan.
Answer:
sorry please write in English than i help.you i don't understand your language
Define a method calcPyramidVolume with double data type parameters baseLength, baseWidth, and pyramidHeight, that returns as a double the volume of a pyramid with a rectangular base. calcPyramidVolume() calls the given calcBaseArea() method in the calculation. Relevant geometry equations: Volume
Answer:
import java.io.*;
public class Main {
public static void main(String[] args) throws IOException {
double baseLength = 0, baseWidth = 0, pyramidHeight = 0;
Object[] volume;
volume = calcPyramidVolume(baseLength, baseWidth, pyramidHeight);
}
public static Object[] calcPyramidVolume(double baseLength, double baseWidth, double pyramidHeight) {
double area = calcBaseArea(baseLength, baseWidth);
double volume = baseLength * baseWidth * pyramidHeight;
return new Object[]{volume, area};
}
public static double calcBaseArea(double length, double width) {
return length * width;
}
}
Explanation:
The problem is flawed because it is completely inefficient for one to create two separate methods to calculate the volume and the area when they can be done at once.
The second problem is that it was never specified whether to return something from the calcBaseArea method.
I assumed it required it, so it is not advisable to initiate the method as a double, but rather create it as an Object so that it can return two values: the volume and the area.
The theory of plate tectonics evolved from previous theories and concepts put forward by several scientists before its conception. Which theories and concepts are part of this evolution? I. continental drift III. convection current II. seafloor spreading IV. internal structure of Earth
Answer:
I. Continental drift.
Hope this helps
Name:
Sup-R Game Desktop – Model EEXL
Inteel® Core i7
6GB Tri-Channel DDR3
500GB SATA-II (7200 rpm)
16x CD/DVD burner
21.5” HD widescreen monitor
NVIDIA® GeForce
Creative Sound Blaster® X-Fi Titanium
Altec Lansing speakers
Gigabit Ethernet port
3 – year limited warranty
Windows 10
1. Suppose you are reading a computer magazine and you come across the ad pictured above. By looking at the specs, you can see that: (2 Points)
The amount of RAM is ___________.
The microprocessor manufacturer is __________.
The amount of disk storage is _______________.
The amount of Solid State Drive storage is ______________
2. In the table below, list the hardware/peripheral components in the ad and check which function the component performs. (Add additional rows to the table if needed). (5 Points)
Component
Processor
Memory
Storage
Input
Output
Other
3. In the table below, list 5 functions/features you would look for in purchasing a computer and explain why each is important to you. (3 Points)
Function/Feature
Explanation as to why and size, capacity, etc. you need this feature/function
5. List and describe the factors that affect the performance of a microprocessor. Name two manufacturers of central processing units (CPUs) and some for the different models of processors that they manufacture. (5 points)
6. At the beginning of an update for your smart phone, you notice a warning that says “Make sure your device is connected to a wall outlet and do not turn the device off until the update is complete.” You suspect that the update is going to _______________ the ROM boot loader to fix a security vulnerability. (2 Points)
7. You are working on a group project and you suggest to your team that they use a ______________ storage service where members can access a shared folder. (2 Points)
8. One of the ports on your laptop is rectangular and the inside of it is blue. It is a(n) _________ port. (2 Points)
9. You need an external keyboard for your Android device, and thankfully you can add a wireless one because it has ________________ capability. (2 Points)
10. You volunteer to produce a large quantity of black-and-white leaflets for a charity organization. It is fortunate that you have access to a(n) _____________________ printer with a high duty cycle and low operating costs.
Can someone help me how to do this.
A computer program should receive students' exam details and shows the student exam grade report. The student exam details are the student ID, name, number of semesters in the university and his/her programming subject's exam score (out of 50\%) . The program should display an error message if the exam mark entered is not within the range of 0 to 50%. It calculates the percentage of exam score (out of 100%), set the exam grade and analyse the students' eligibility to join self-improvement program based on the grade and the number semester in the university. The program shall display the student ID, name, exam score over 100%, its letter grade plus the relevant self-improvement program.
The letter grade for exam is determined as follows:
A=90-100\%
B=80-89%
F=0.59\%
Three sets of output screenshots from the program runs
Design and develop the program. Your submission to ULearn must include:
D=60-69\%
The university offers 3 self-improvement programs:
Mighty Musang King
for those who just join the university for 1 semester received F in their exam.
Pseudocode OR Flowchart
2. Python Program in .py format
<for those who has been in the university for 2 semesters received grade C or D for the exam
1. A Pdf file that consists of
for those who has been in the university for 3 semesters received grade A or B for the exam
Fighting Pomelo
C= 70-79\%
Mushy Banana
Answer:
2. is answer to the question
To what extent do you agree with the assertion that “Collection development begins with community analysis”. (Give reasons to buttress your answer).
The assertion that collection development starts with community analysis is logically correct.
The collection development policy is vital for setting goals for the collection that mirror the missions of the library. It gives information to the stakeholders of the library about how the collection will be chosen, and who will make the decisions regarding the collection.
Collection development starts with community analysis. The collection plan should follow a logical process in order to be effective. The community should be taken into consideration before the plan is carried out. The more one knows about the community, the better it'll be to make the collection plan effective.
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Despite a wide variety of workplaces for those working in Human Services, all workplaces include
Answer:
employees and a computer
Explanation:
You should move around and take a rest for 30 minutes every 5 minutes.
True Or False
Answer:
obviously true.........
Activity 5: Binary Initial Directions:
Get the binary value of your first name
initial.Maximum of ten letters only....
Character
A B. с D E F. G H I
Decimal
65 66 67 68 69 70 71 72 73
Character N o P Q R S T U V
Decimal 78 79 80 81 82 83 84 85 86
ANSWER:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Answer:
:bombebphynyjnjtj
Explanation:
vqnafhteg
three positive impacts of computer technology in our society.
ANSWER :
• It facilities business process and other activities. It makes the work simple and less time consuming.
• We can store so many information on computer which makes easy to handle the information for business applications.
• We can perform multitasking and multiprocessing capabilities of data.
Answer:
We can perform multitasking and multiprocessing capabilities of data. We can store documents secretly on computer system. It gives error free result so that we can use it for research, engineering work and other areas.In which of these images would lines become an evaluating factor?
Answer: The fish?
Explanation:
Answer:
birds in flight and railroad tracks
Explanation:
i got it right
Technology and Communications Quiz Active 1 Which of the following inventions has had the greatest impact on sound technology? A. the extension cord
B. the tape recorder
c. the telegraph
d. the microphone
Answer:
B the tape recorder bec half century later made sonorities not only reproducible but also alterable.
explain how communication in fuses management efficiency
Explanation:
Effective communication is pivotal in increasing productivity because it directly influences the behavior of the staff and the way they perform. ... That is why it is essential that you practice communicating with your staff. It will improve understanding and, in the result, will elevate productivity and efficiency.
Which telemetry is used for monitoring astronauts in space
Answer:
I believe it is medical telemetry
These steps describe the procedure to delete files from your computer.
Click on the Recycle Bin.
Click on the Delete icon.
Select the file to be deleted.
Select Delete from the File menu.
Answer:
select the file to be deleted
Explanation:
A group of related classes is called a?
package. collection. attachment. archive.
A(n) package is the name for a collection of linked classes. A class field that depends on the values of other class fields should not be defined. To prevent having outdated info. Thus, option A is correct.
What package is a group of related classes?A group of related classes and interfaces are grouped under the namespace of a package. It is possible to think about packages as being similar to different computer directories.
A group of package parts is referred to as a package group. Package groups let you specify frequently connected elements as a single entity that you may associate with a rate code or a reservation.
A Bed and Breakfast package, which includes a room and breakfast service for a predetermined price, can serve as an illustration.
Therefore, make sure that just one class out of any multiple classes you define in a single Java file is public.
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2. What is the MOST common experience LGBTQ+ individuals share when accessing medical trea
services?
Having inadequate transportation to obtain services
Having to educate their service provider on how to provide adequate care
Having to communicate with the provider in a second language
Having providers ignore and minimize their pain due to race
3. True or False: LGBTQ+ youth, especially gender non-conforming youth, are referred more often to
than their heterosexual, cisgender peers.
True
False
Answer:
true on the last one
Explanation:
What is the purpose of DNS round robin technique?
Answer:
DNS round robin work by providing different IP responses from a DNS server request for the same host. When netmask ordering is enable the DNS server will attempt to return a host IP address that is on the same subnet as the querying client.
The round-robin DNS technique was created to reduce the heavy loads brought on by numerous customers connecting to a single server at once. It enables the use of various servers for various clients connected to the same domain.
What is DNS round robin technique?When using round robin DNS, each server's IP address is distributed before moving to the back of the list; the following server's IP address is then distributed before moving to the end of the list. With regard to the amount of servers being used, this process continues.
Routing method that distributes requests among a list of IP addresses and iterates over them one by one to balance internet traffic for IP addresses.
To lessen the tremendous demands caused on by many users connecting to a single server at once, the round-robin DNS mechanism was developed.
It makes it possible for different clients connected to the same domain to use different servers.
Thus, this is the main purpose of DNS round robin technique.
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phân tích cạnh tranh của cocacola và pepsi
A brief communication used in businesses is called a _____.
hard copy
document
memo
research paper
Answer:
C. Memo
Explanation:
Hope this helps :)
Answer:
the answer is it is called a memo
While shopping online, Tucker visits a website that looks outdated and has limited reviews. Which of the following strategies should he use to make sure the site is trustworthy?
Evaluate source credibility.
Fact check.
Use the website anyway.
Look for authenticity.
Answer:
Evaluate source credibility
Explanation:
cuz it is
Evaluate source credibility is the strategies should he use to make sure the site is trustworthy. Hence, option A is correct.
What is source credibility?documents released during the last ten years; research publications written by reputable and well-known writers; websites registered by governmental and educational institutions.
the extent to which consumers trust and believe what other people and organizations say about a specific offering or service According to the source credibility idea, when a source promotes itself as credible, people are more likely to be convinced.
The sources can be categorized into three groups: primary sources, secondary sources, and tertiary sources. There are numerous distinct sorts of sources. Since they provide you with direct evidence of the topic you are investigating, primary sources are frequently thought to be the most credible forms of support for your claim.
Thus, option A is correct.
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Discussion Topic
Music exists across the world. It acts as a universal language. Can you see yourself
working in some sort of musical career? How might music influence your career path?
Consider other people you know, as well, from family members to friends. Can you see
any of them entering the music business? How might this business benefit each of
these people? If any of them came to you with an interest in the music business, how
would you guide them, given what you now know about music and the music business?
What personality types would do the best in the music business?
What kind of loop repeats until something else (determined by the program) happens?
iterative number loop
condition-controlled loop
count-controlled loop
forever loop
Answer:
The Condition-controlled loop
Explanation: Because its called a Condition and it does not stop untill something happens thats why its called "condition".
Answer: It's Condition-controlled loop
Explanation: The meaning of condition-controlled loop is Blocks will keep repeating until a condition is satisfed, Also beacuse I already did the quiz.
What happens to the Menu Bar when the
object (image, shape, etc.) is "active"?
Answer: Ok so Sorry about this but I will answer thing at 10:20 tommorow I promise
Explanation:
Write a program that can add, Subtract, multiply and divide entered numbers.
In Python:
def add(x, y):
return x + y
def subtract(x, y):
return x - y
def multiply(x, y):
return x * y
def divide(x, y):
return x / y
what logo is this? can someone else please answer this?
What protocol is used to discover the hardware address of a node with a certain IP address?
Answer: ARP hope this helps
How many passes will it take to find 30 using a binary search?
5, 10, 15, 20, 25, 30, 35
1,2,3 or 4 passes
explain how communication smooth and efficient working of an organisation.
Answer:
Effective communication is pivotal in increasing productivity because it directly influences the behavior of the staff and the way they perform. ... That is why it is essential that you practice communicating with your staff. It will improve understanding and, in the result, will elevate productivity and efficiency.
Which of the following was the most significant impact the NEA had on the performing arts industry? W
It created more performance spaces.
O It increased awareness of the performing arts.
It increased production of the performing arts.
O It created more jobs.
Save and Exit
Next
Submit
dan
Answer:
The NEA’s focus on building new performing arts centers led to an increased production of arts.
