Answers
A well-liked optimization technique for building models in machine learning is stochastic gradient descent. A well-liked decision tree technique for classification issues in machine learning is ID3.
A well-liked optimization approach for training models in machine learning is stochastic gradient descent. As it changes the model weights based on a small batch of randomly chosen samples rather than the complete dataset, it is especially helpful for huge datasets. Implementing the SGD algorithm entails the following steps:
1. Initialize the model weights at random.
2. The dataset was divided into smaller groups.
3. Every batch:
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Related Questions
which ine if these is a subtractive theory
Answers
Answer: b I think please correct me if I'm wrong
Explanation:
5. a. Suppose a shared-memory system uses snooping cache coherence and write-back caches. Also suppose that core 0 has the variable x in its cache, and it executes the assignment x = 5. Finally suppose that core 1 doesn’t have x in its cache, and after core 0’s update to x, core 1 tries to execute y = x. What value will be assigned to y? Why? b. Suppose that the shared-memory system in the previous part uses a directory-based protocol. What value will be assigned to y? Why? c. Can you suggest how any problems you found in the first two parts might be solved?
Answers
a. The value assigned to y will be 5 because core 1 will snoop and invalidate its own cache copy of x, then fetch the updated value from core 0's cache.
What is the value for y?b. The value assigned to y will also be 5 because the directory-based protocol will update the directory and broadcast the invalidation to core 1, causing it to fetch the updated value from core 0's cache.
c. To solve any potential problems, the system could use a different cache coherence protocol, such as write-through caches, or implement a locking mechanism to ensure exclusive access to shared variables.
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Create a list of books you like most. Make sure the list has more than 7 books. Assume you want to randomly assign one book to read to each of your 7 friends. Make sure no two people get the same book assigned to them.
This a coding question, so paste your answer directly from python
Answers
Answer:
import random
# List of books
books = ["To Kill a Mockingbird", "The Great Gatsby", "Pride and Prejudice", "1984", "Animal Farm", "Brave New World", "The Catcher in the Rye", "One Hundred Years of Solitude", "The Lord of the Rings", "Harry Potter and the Philosopher's Stone", "The Hobbit", "The Hunger Games", "The Da Vinci Code", "Angels and Demons", "The Girl with the Dragon Tattoo", "Gone Girl", "The Fault in Our Stars"]
# Shuffle the list of books randomly
random.shuffle(books)
# Assign one book to each of seven friends without repeating any book
for i in range(7):
print("Friend", i+1, "will read:", books[i])
This code will randomly shuffle the list of books and then assign one book to each of seven friends without repeating any book. The output will display the name of each friend followed by the book assigned to them.
Explanation:
hello!..
Here's the code: ↓```python
import random
# List of books you like most
favorite_books = [
"The Great Gatsby",
"To Kill a Mockingbird",
"1984",
"Pride and Prejudice",
"The Catcher in the Rye",
"The Lord of the Rings",
"Harry Potter and the Sorcerer's Stone",
"The Hobbit",
"The Hunger Games",
"The Da Vinci Code",
]
# Create a copy of the list to shuffle
available_books = favorite_books.copy()
# Initialize a dictionary to store book assignments
book_assignments = {}
# Create a list of your 7 friends
friends = ["Friend1", "Friend2", "Friend3", "Friend4", "Friend5", "Friend6", "Friend7"]
# Assign books to friends randomly without duplicates
for friend in friends:
if available_books:
assigned_book = random.choice(available_books)
book_assignments[friend] = assigned_book
available_books.remove(assigned_book)
else:
break # No more books available
# Print the book assignments
for friend, book in book_assignments.items():
print(f"{friend} will read: {book}")
```
↪ This code will randomly assign one book from your list of favorite books to each of your 7 friends, ensuring that no two friends receive the same book.
Explain the differences and similarities between database, DBMS, database system and database application using supportive examples in details
Answers
Sure. Here are the differences and similarities between a database, DBMS, database system, and database application:
Database: A database is a collection of data that is organized in a way that makes it easy to retrieve and use. Databases can be used to store all sorts of data, including customer information, product inventory, financial records, and more.
DBMS: A database management system (DBMS) is a software application that helps users create, maintain, and use databases. DBMSs provide a number of features that make it easier to work with databases, such as:
Data definition: The ability to define the structure of a database, including the tables, columns, and relationships between them.
Data manipulation: The ability to insert, update, delete, and query data in a database.
Data security: The ability to control who has access to a database and what they can do with the data.
Data performance: The ability to optimize the way data is stored and accessed, which can improve performance.
Data scalability: The ability to scale up a database to handle large amounts of data.
Database system: A database system is a combination of a database and a DBMS. A database system provides all of the features of a DBMS, as well as the data itself.
Database application: A database application is a software application that uses a database to store and retrieve data. Database applications can be used for a variety of purposes, such as:
Managing customer information
Tracking inventory
Processing financial transactions
Generating reports
Here are some examples of databases, DBMSs, database systems, and database applications:
Database: The customer database at a retail store.
DBMS: MySQL, Oracle, SQL Server, PostgreSQL.
Database system: The combination of a database and a DBMS, such as the MySQL database system.
Database application: The software application that uses a database to store and retrieve data, such as the customer relationship management (CRM) application at a retail store.
I hope this helps! Let me know if you have any other questions.
In a parallel circuit, which is true of the total resistance *
OIt is equal to the product of all the resistances
OIt is equal to the sum of all the resistances
OIt is greater than the sum of the all the resistances
OIt is less than the sum of the all the resistances
Answers
In a parallel circuit, the total resistance D. is less than the sum of all the resistances.
What is a Parallel Circuit?When there are several paths for the electric current to travel through, a circuit is said to be parallel. A steady voltage will exist over the whole length of the components in the parallel circuits.
With this in mind, one can see that the correct answer from the list of answer choices is option D which sasys that the total resistance D. is less than the sum of all the resistances.
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Fill in the blank: Most vendors or computer hardware manufacturers will assign a special string of characters to their devices called a _____.
Answers
Answer:
hardware ID number
Explanation:
8
Drag each tile to the correct location. Not all tiles will be used.
Complete the code for defining a table using the correct tags.
Name
Age
Jill Smith
50
94
Eve Jackson
Answers
Match the president name and he expanded:
Franklin Roosevelt: Used veto power for political reasons.Harry Truman: Bypassed Congress to declare war in Korea.Andrew Jackson: presidential power, Issued the most, Executive orders.On March 15, 1767, Andrew Jackson was born; he passed away on June 8, 1845. He was to stand in for the "corrupt bargain" that, in his opinion, cost him the presidency and gave him the drive to win the next election no matter what.
According to the various president are the various decision. The president is the used of the power to take the decision.
Franklin Roosevelt: The veto power and the political reasons.
Harry Truman: The used right to declare war in Korea.
Andrew Jackson: president power, executive orders.
As a result, the significance of the Andrew Jackson are the aforementioned.
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The question seems to be incomplete, the complete question will be:
Drag the tiles to the correct boxes to complete the pairs.
Match each president’s name to the correct description of how he expanded.
Franklin Roosevelt, Harry Truman, Andrew Jackson
presidential power.
Issued the most
executive orders
Used veto power for
political reasons
Bypassed Congress to
declare war in Korea
consider the following code and assume that the register x3 contain the address 0x40000000 and the data at address is 0xfb1907ebf234568 , what value is stored in 0x40000008 on a big-endian machine?
LDURB X10, [X3 , #0]
STUR X10, [X7,#8]
Answers
The code is performing a load-store operation in ARM assembly language.
What does the code do?The LDURB instruction loads a byte from the memory location pointed to by the register X3 and stores it in the register X10. The STUR instruction stores the value in register X10 to the memory location pointed to by the register X7, with an offset of 8 bytes.
Assuming that the machine is big-endian, the byte at address 0x40000000 will be loaded into the least significant byte of the register X10. The remaining 7 bytes of the register will be zeroed out.
Therefore, the value stored in X10 will be 0x00000000000000eb. This value will then be stored at the memory location pointed to by X7 with an offset of 8 bytes, i.e., at address 0x40000008.
So, the value stored in address 0x40000008 will be 0x00000000000000eb.
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I'm a little confused about how this is worked out. The value on the left is the largest binary value, and the right is the smallest.
0.0011₂ < 0.24₁₀ < 0.0100₂
Answers
The decimal value 0.24 is in the middle and the binary value 0.0100 is the greatest of the three numbers, with binary value 0.0011 being the lowest.
Which decimal binary number is the smallest?There is only one 4-digit binary number, which is zero. The smaller number in binary, decimal, and hexadecimal bases is actually this one. Therefore, 0 is the smallest 4-digit binary number and it remains 0 when expressed in any other base.
What does 0.1 mean in binary form?The binary representation of the number 0.1 is 0.00011001100110011... The 0011 pattern is infinitely repeatable. The binary equivalent of 0.1 cannot be stored. 1/10 is equal to 0.1, as we all know.
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6.1.1 bricks codehs javascript please
Answers
Answer:
// This code is for the Breakout game in CodeHS.
// Create the canvas.
var canvas = document.getElementById("game-canvas");
// Create the ball.
var ball = {
x: canvas.width / 2,
y: canvas.height / 2,
dx: 5,
dy: -5
};
// Create the paddle.
var paddle = {
x: canvas.width / 2,
y: canvas.height - 20
};
// Create the bricks.
var bricks = [];
for (var i = 0; i < 10; i++) {
for (var j = 0; j < 5; j++) {
bricks.push({
x: 20 + j * 100,
y: 20 + i * 20
});
}
}
// Draw the ball.
function drawBall() {
var ctx = canvas.getContext("2d");
ctx.fillStyle = "red";
ctx.fillCircle(ball.x, ball.y, 10);
}
// Draw the paddle.
function drawPaddle() {
var ctx = canvas.getContext("2d");
ctx.fillStyle = "blue";
ctx.fillRect(paddle.x, paddle.y, 100, 20);
}
// Draw the bricks.
function drawBricks() {
var ctx = canvas.getContext("2d");
ctx.fillStyle = "gray";
for (var i = 0; i < bricks.length; i++) {
ctx.fillRect(bricks[i].x, bricks[i].y, 100, 20);
}
}
// Update the ball's position.
function updateBall() {
ball.x += ball.dx;
ball.y += ball.dy;
// If the ball hits the top or bottom of the canvas, reverse its y-direction.
if (ball.y < 0 || ball.y > canvas.height) {
ball.dy = -ball.dy;
}
// If the ball hits the left or right side of the canvas, reverse its x-direction.
if (ball.x < 0 || ball.x > canvas.width) {
ball.dx = -ball.dx;
}
// If the ball hits the paddle, reverse its x-direction.
if (ball.x + 10 > paddle.x && ball.x < paddle.x + 100 && ball.y > paddle.y && ball.y < paddle.y + 20) {
ball.dx = -ball.dx;
}
// If the ball hits a brick, remove the brick and reverse the ball's x-direction.
for (var i = 0; i < bricks.length; i++) {
if (ball.x + 10 > bricks[i].x && ball.x < bricks[i].x + 100 && ball.y > bricks[i].y && ball.y < bricks[i].y + 20) {
bricks.splice(i, 1);
ball.dx = -ball.dx;
break;
}
}
}
// Start the game loop.
function startGame() {
// Clear the canvas.
var ctx = canvas.getContext("2d");
ctx.clearRect(0, 0, canvas.width, canvas.height);
// Draw the ball.
drawBall();
// Draw the paddle.
drawPaddle();
// Draw the bricks.
drawBricks();
// Start the game loop.
setInterval(updateBall, 20);
}
// Start the game.
startGame();
Here is one possible answers for the CodeHS Javascript and Graphics 3.2.4 activity that prints the statement.
What is center of the circle?The center of a circle is the center point in a circle from which all the distances to the points on the circle are equal. This distance is called the radius of the circle. Here, point P is the center of the circle.
The diameter of a circle is the distance from a point on the circle to a point. radians away, and is the maximum distance from one point on a circle to another. The diameter of a sphere is the maximum distance between two antipodal points on the surface of the sphere.
The Code HS activity may have specific requirements or constraints that this solution does not take into account. It's best to review the instructions and use this as a guide.
Therefore, The distance between the center of the circle to its circumference is the radius.
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Given a partial main.py and PlaneQueue class in PlaneQueue.py, write the push() and pop() instance methods for PlaneQueue. Then complete main.py to read in whether flights are arriving or have landed at an airport.
An "arriving" flight is pushed onto the queue.
A "landed" flight is popped from the front of the queue.
Output the queue after each plane is pushed or popped. Entering -1 exits the program.
Click the orange triangle next to "Current file:" at the top of the editing window to view or edit the other files.
Note: Do not edit any existing code in the files. Type your code in the TODO sections of the files only. Modifying any existing code may result in failing the auto-graded tests.
Important Coding Guidelines:
Use comments, and whitespaces around operators and assignments.
Use line breaks and indent your code.
Use naming conventions for variables, functions, methods, and more. This makes it easier to understand the code.
Write simple code and do not over complicate the logic. Code exhibits simplicity when it’s well organized, logically minimal, and easily readable.
Ex: If the input is:
arriving AA213
arriving DAL23
arriving UA628
landed
-1
the output is:
Air-traffic control queue
Next to land: AA213
Air-traffic control queue
Next to land: AA213
Arriving flights:
DAL23
Air-traffic control queue
Next to land: AA213
Arriving flights:
DAL23
UA628
AA213 has landed.
Air-traffic control queue
Next to land: DAL23
Arriving flights:
UA628
code:
from PlaneQueue import PlaneQueue
from PlaneNode import PlaneNode
if __name__ == "__main__":
plane_queue = PlaneQueue()
# TODO: Read in arriving flight codes and whether a flight has landed.
# Print the queue after every push() or pop() operation. If the user
# entered "landed", print which flight has landed. Continue until -1
# is read.
Answers
The Python code is created to imitate a simple ground monitors of aircraft system. It imports two classes from two various Python files: PlaneQueue from PlaneQueue.py and PlaneNode from PlaneNode.py. The code is given in the image attached.
What is the code about?The PlaneQueue class is used to constitute a queue dossier structure to hold succeeding flights, while the PlaneNode class is used to conceive instances of individual planes.
The main.py file contains the main program that establishes an instance of the PlaneQueue class and reads in flight codes and either a departure has landed.
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Assume a program requires the execution of 120 x 10^6 FP instructions, 80 x 10^6 INT instructions, 100x 10^6 Load/Store (L/S) instructions and 20 x 10^6 branch instructions. The CPI for each type of instruction is 1, 1, 4 and 2, respectively. Assume that the processor has a 2 GHz clock rate.By how much must we improve the CPI of L/S instructions if we want the program to run two times faster?
Answers
Total FP cycles = 120 x 10^6 x 1 = 120 x 10^6
Total INT cycles = 80 x 10^6 x 1 = 80 x 10^6
Total L/S cycles = 100 x 10^6 x 4 = 400 x 10^6
Total branch cycles = 20 x 10^6 x 2 = 40 x 10^6
Total cycles = Total FP cycles + Total INT cycles + Total L/S cycles + Total branch cycles
= 120 x 10^6 + 80 x 10^6 + 400 x 10^6 + 40 x 10^6
= 640 x 10^6
Next, let's calculate the current execution time of the program:
Execution time = Total cycles / Clock rate
= 640 x 10^6 / (2 x 10^9)
= 0.32 seconds
To make the program run two times faster, we need to reduce the execution time to 0.16 seconds. We can achieve this by reducing the CPI of Load/Store instructions. Let x be the new CPI of L/S instructions that we need to achieve the target execution time.
New total cycles = Total FP cycles + Total INT cycles + Total L/S cycles with new CPI + Total branch cycles
= 120 x 10^6 + 80 x 10^6 + 100 x 10^6 x x + 20 x 10^6 x 2
We want the new execution time to be half of the original execution time:
New execution time = New total cycles / Clock rate = 0.16 seconds
Substituting the values, we get:
0.16 seconds = (120 x 10^6 + 80 x 10^6 + 100 x 10^6 x x + 20 x 10^6 x 2) / (2 x 10^9)
Simplifying the equation:
0.16 x 2 x 10^9 = 120 x 10^6 + 80 x 10^6 + 100 x 10^6 x x + 40 x 10^6
320 = 100 x 10^6 x x
x = 3.2
Therefore, the CPI of Load/Store instructions must be improved from 4 to 3.2 in order to make the program run two times faster.
3. Which product has an open-source license in addition to having a non-relational system?
a. Oracle Database
b. SQL Server
c. MongoDB
d. MySQL
Answers
ou work for an IT Consulting company, and you have a client that is looking for recommendations to purchase Hard Drive upgrades that increase both speed/raw performance and size. The current drives they are currently using are Mechanical HDDs that are 256GB and spin at 7200 RPM. They are looking to upgrade their workstations and are requesting 2TB size drives with sequential reads/writes up to 2400MB/s/1900MB/s. Your task is to research (2) appropriate recommendations for these specifications, and include:
Vendor links with pricing
Image(s) for each drive
Specifications outline from the vendor
Total prices for each recommendation.
Answers
According to the consumer's demand for both agility and size, two compelling SSD options emerge -- the Samsung 970 EVO Plus and the WD Black SN850.
Why is this a good choice?The Samsung 970 EVO Plus boasts sequential reads reaching 3500MB/s as well as writes up to 3300MB/s; its 2TB product is priced at $349.99 on Samsung's website.
When it comes to the WD Black SN850 ,it exhibits brisk sequential readings of 7000MB/s and writings of 5300MB/s; matching the former, this 2TB model also carries a cost of $499.99 through Western Digital's website.
Overall prices for the Samsung 970 EVO Plus and the WD Black SN850 stand at $349.99 and $499.99 respectively. More visuals and precise details can be found on the relevant webstores.
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What is a cross-functional team?
Answers
Answer:
groups consisting of people from different functional areas of the company – for example, marketing.
explain the advantage of file-based approach manual data management approach?
Answers
Answer:
The main advantage of a file-based approach to manual data management is that it is simple and easy to understand. Each file is used to store a specific type of data, and the files are stored in a logical hierarchy. This makes it easy to find the data you need, and it also makes it easy to keep track of the data.
Another advantage of a file-based approach is that it is very flexible. You can easily add new files or modify existing files to meet your needs. This makes it a good choice for small businesses or organizations that need to be able to adapt quickly to changes.
Finally, a file-based approach is very cost-effective. You don't need to purchase any special software or hardware, and you can easily set it up yourself. This makes it a good choice for businesses or organizations that are on a tight budget.
However, there are also some disadvantages to a file-based approach. One disadvantage is that it can be difficult to manage large amounts of data. Another disadvantage is that it can be difficult to keep track of changes to the data. Finally, a file-based approach can be less secure than other methods of data management.
Overall, a file-based approach to manual data management is a simple, flexible, and cost-effective way to store data. However, it is important to weigh the advantages and disadvantages before deciding if it is the right choice for your needs.
Which option is the best example of a computing device using abstraction to
connect images with social systems?
A. Social media platforms showing ads based on a user's shopping
behavior
OB. Video platforms suggesting similar videos based on a user's
viewing history
O C. Video platforms showing ads based on previously watched videos
OD. Social media platforms tagging individuals in photos
SUBMIT
Answers
The best example of a computing device using abstraction to connect images with social systems is option (D), social media platforms tagging individuals in photos.
What is the computing device?Labeling people in photographs includes deliberation because the computing gadget ought to analyze the picture to distinguish the people display within the photo. This requires the utilize of computer vision calculations that can recognize faces and coordinate them to names in a social system's client database.
Moreover, the act of labeling people in photographs makes associations between social frameworks, as the labeled people are informed and can at that point connected with the photo and with each other.
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Which is a tool that allows you to copy formatting from one place and apply it to other places?
Copy and Paste
Pagination
Styles
Format Painter
Answers
The Format Painter is a formatting tool that facilitates copying of formats from one text section to others by applying the same styles swiftly and easily.
What is it used for?It is typically integrated into word processors such as G o o gle Docs or Microsoft Word, rendering it an efficient method for editing texts in various settings. Using this tool, users enjoy effortless manipulation of font types, hues, and alignment, among other forms of formatting requirements.
The steps involved are straightforward; simply pinpoint the origin section, highlight your preferences with just one click, activate the painting feature, and brush over the targeted areas you desire, achieving a uniform format entirely anew.
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Why is DevOps enablement necessary?
Answers
Here are some of the main reasons why DevOps enablement is essential:
Faster time-to-marketImproved collaboration:What is the DevOps?DevOps enablement is necessary because it helps organizations to improve their software delivery processes and accelerate their time-to-market.
Faster time-to-market: DevOps enables organizations to deliver software more quickly and efficiently by automating the software development, testing, and deployment processes. This means that software can be developed and released to the market faster, giving organizations a competitive advantage.
Improved collaboration: DevOps encourages collaboration and communication between development, operations, and other stakeholders, breaking down silos and promoting cross-functional teamwork. This collaboration helps to identify and fix issues more quickly and improves overall quality.
Increased agility: DevOps enables organizations to respond more quickly to changing market conditions, customer needs, and emerging technologies. By adopting DevOps practices, organizations can make changes and updates to their software more quickly and efficiently, without sacrificing quality.
Lastly, Improved quality: DevOps practices such as continuous integration and continuous delivery (CI/CD) help to ensure that software is tested thoroughly and regularly, reducing the likelihood of bugs and errors. This improves overall quality and customer satisfaction.
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Consider the following 2 pseudocode options for implementing the Allocate-Node() functionality of the BTree in C++. How would each impact the runtime of the
B-Tree-Insert function? Consider both asymptotic analysis as well as real time impacts.
Allocate-Node()
x = Node()
x.leaf = true
x.n = 0
x.keys = new int[2*t-1] \\ member variable int* keys
x.c = new Node*[2*t] \\ member variable Node** c
Allocate-Node()
x = Node()
x.leaf = true
x.n = 0
x.keys = { } \\ member variable vector keys
x.c = { } \\ member variable vector c
Answers
Answer:
The first option, using new, has a worst-case runtime of O(n), where n is the number of elements in the B-Tree. This is because the new operator must allocate memory for the entire node, which can be a significant amount of time if the node is large. The second option, using a vector, has a worst-case runtime of O(1). This is because vectors are automatically resized as needed, so there is no need to allocate a new block of memory each time a node is created.
In practice, the difference in runtime between the two options is likely to be small. However, if the B-Tree is large, the first option could have a significant impact on performance.
Here is a more detailed analysis of the two options:
Option 1: new
The new operator allocates memory on the heap. This means that the operating system must find a free block of memory large enough to hold the node, and then update the memory allocation tables. This process can be relatively slow, especially if the node is large.
In addition, the new operator can be a source of memory leaks. If a node is created but never deleted, the memory it occupies will eventually be reclaimed by the garbage collector. However, this can take a long time, especially if the node is large or if there are many other objects in the heap.
Option 2: vector
Vectors are a type of data structure that automatically resizes as needed. This means that when a new node is created, the vector will automatically allocate enough memory to hold the node's data. This is much faster than using new, and it also eliminates the risk of memory leaks.
However, there is one downside to using vectors: they can be slower than arrays for accessing individual elements. This is because vectors must first check to see if the element is within bounds, which can add a small amount of overhead.
In general, the second option (using a vector) is the better choice for implementing Allocate-Node(). It is faster, it eliminates the risk of memory leaks, and it is just as efficient for most operations. However, if performance is critical, and the nodes in the B-Tree are large, the first option (using new) may be a better choice.
What is the meaning of I.C.T Lab?
please tell
ASAP!!!!
Answers
Answer:
The meaning of I.C.T Lab is Computer Lab.
We use I.C.T Lab rather than using Computer Lab as it looks more formal and more Diciplined.
Explanation:
IF MY ANSWER IS HELPFUL THEN PLEASE RATE IT, LIKE IT, FOLLOW ME AND GIVE ME A BRAINLIEST...PLEASE.
THANK YOU...!
Answer:
Information and Communication Technology
Explanation:
In the lab, I.C.T stands for Information and Communication Technology. The ICT Lab is constructed and outfitted with computers and other learning resources to improve the study and teaching of Computer Studies, Data Processing, and other related disciplines and academic activities.
write algorithm to determine a student final grade and indicate whether it passing or failing the final grade is calculate as the average of four marks
Answers
This approach makes the assumption that the marks have already been entered and are being saved in a list or array. If not, you will need to provide input statements to collect the user's marks.
How do you determine whether a learner has passed or failed an algorithm?Let's say the passing score in Microsoft Excel is 70. And the student's grades are a B4. Afterward, type the following formula in cell C4: =IF(B470,"FAIL","PASS"). Accordingly, insert the word FAIL in cell B4 if the score in B4 is less than 70, otherwise/otherwise enter the wordPASS.
1. Set sum to zero
2. FOR i = 0 to 3
3. input symbols [i]
4. SET marks[i] = marks + sum
5. END WITH
SET average = total / 4.
7. Set the final grade to the average.
PRINT "Passing" + final_grade IF final_grade >= 50.
10. ELSE
11. PRINT "Failing" followed by the grade
12. END IF
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Part II: additional problems 1, 2, and 3 listed below.
For each problem:
a. Identify the given table as 1NF, 2NF, 3NF, or UNF (contains repeating group).
b. Identify all partial and transitive dependencies by drawing a dependency diagram
(for a UNF table, transform it to 1NF, then draw the dependency diagram).
c. Transform all tables into 3NF by following the steps below. For c, you do NOT have
to draw dependency diagrams.
1. STUDENT (STUDENT SSN, ST_NAME, MAJOR, ADVISOR NUM, ADV_NAME,
ADV OFFICE. ADV PHONE ST CREDITHRS, CLASS STANDING)
where:
STUDENT SSN
- All other attributes
ADVISOR NUM› ADV_NAME, ADV OFFICE, ADV PHONE
ST CREDIT HRS > CLASS STANDING
Note: XYZ > ORS means that XYZ determines ORS
You can also find this notation in figure 6.3 and definition of determination on page
62.
2. MOVIE (MOVIE NUM, MOVIE TITLE, STAR NUM, STAR NAME)
Sample data: (You can determine primary key based on the sample data.)
MOVIE NUM
MOVIE TITLE
STAR NUM
I STAR NAME
M001
The Mummy
S001
Brendan Fraser
S002
Rachel Weisz
M002
Crash
S001
Brendan Fraser
S003
Sandra Bullock
(You may notice one movie can feature many stars and one star can act in many movies.)
3. MOVIE (MOVIE NUM, MOVIE TITLE, DIRECTOR NUM, DIR NAME)
where:
MOVIE NUM
> MOVIE TITLE, DIRECTOR NUM, DIR NAME
DIRECTOR_NUM >
DIR NAME
Answers
The problem involves analyzing given tables and identifying their normal form, dependencies, and transforming them to 3NF if necessary.
What is the explanation for the above response?
1) a. UNF (contains a repeating group)
b.
STUDENT SSN > ST_NAME, MAJOR, ADVISOR NUM, ST CREDITHRS, CLASS STANDING
ADVISOR NUM > ADV_NAME, ADV OFFICE, ADV PHONE
STUDENT SSN is the primary key of the table.
c.
1NF:
STUDENT (STUDENT SSN, ST_NAME, MAJOR, ADVISOR NUM, ST CREDITHRS, CLASS STANDING)
ADVISOR (ADVISOR NUM, ADV_NAME, ADV OFFICE, ADV PHONE)
2)
a. 1NF
b.
MOVIE NUM > MOVIE TITLE
STAR NUM > STAR NAME
MOVIE NUM, STAR NUM is the primary key of the table.
c.
1NF:
MOVIE_STAR (MOVIE NUM, STAR NUM)
STAR (STAR NUM, STAR NAME)
MOVIE (MOVIE NUM, MOVIE TITLE)
3)
a. 3NF
b.
MOVIE NUM > MOVIE TITLE
DIRECTOR NUM > DIR NAME
MOVIE NUM is the primary key of the table.
c.
The given table is already in 3NF, so no transformation is needed.
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Jeremy wants to see how much he spends on food each month but the spreadsheet doesn't identify expenses that are considered food. What should he do to see his food expenses?
Answers
Explanation:
The income as well as my expenses can be computed as :
Income yearly ; $10,0000
housing $2,000
utilities $500
savings $2,000
transportation $500
food $3000
personal expenses $1000
Expenses= $9,000
Income yearly=$10,0000
(Income yearly-Expenses)=$1000
How can I become better at soccer? I’m in 5th grade
Answers
Keep practicing! Nobody ever gets better at anything overnight. Every single person who is great at soccer has put in hours of practice!
Mr. Murphy is ordering pens for a fundraiser. He has 2 boxes of pens in his office. There are 5 bundles of pens in each box. Each bundle is made up of 50 pens. Mr. Murphy wants to have 750 pens available for the fundraiser. How many more pens should he order
Answers
In this problem, we are given that Mr. Murphy has 2 boxes of pens in his office, with 5 bundles of pens in each box, and 50 pens in each bundle. We can find the total number of pens Mr. Murphy currently has by multiplying the number of boxes by the number of bundles in each box, and then by the number of pens in each bundle. This gives us:
2 boxes x 5 bundles per box x 50 pens per bundle = 500 pens
Next, we are told that Mr. Murphy wants to have 750 pens available for the fundraiser. To determine how many more pens he needs to order, we can subtract the number of pens he currently has from the total number of pens he wants to have:
750 pens - 500 pens = 250 pens
This tells us that he needs to order 250 more pens to have a total of 750 pens available for the fundraiser.
Mr. Murphy currently has 500 pens in his office because 2 x 5 x 50 = <<2*5*50=500>>500.
Mr. Murphy needs to order 250 more pens because 750 - 500 = <<750-500=250>>250.
Therefore, Mr. Murphy should order 250 more pens.
3. Give the trace of your machine in the previous problem processing the strings 1011 and 10
Answers
A Mealy machine and a Moore machine can be designed to detect the sequence "1011". For the Mealy machine, states represent the matched part of the sequence, and output depends on transitions.
For the Moore machine, states also represent the matched part, and output depends on states.
To design a Mealy machine, follow these steps:
1. Create states (S0, S1, S2, S3) representing matched parts of the sequence.
2. Add input edges and output labels for each transition (0 or 1).
3. For correct input, transition to the next state (e.g., S0 -> S1 on input 1).
4. For incorrect input, transition back to the appropriate state.
5. Set output 1 when the final state is reached (S3), and 0 otherwise.
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what is technology and it uses
Answers
Answer:
Technology is the application of knowledge for achieving practical goals in a reproducible way. The word technology can also mean the products resulting from such efforts, including both tangible tools such as utensils or machines, and intangible ones such as software.
uses
Communication
social media
health care
Answer:
We use technologies to exchange information, to clean our clothes, to prepare our meals and to get from one place to another. But even everyday items like door locks, floor panels and furniture are technologies that we now take for granted and that seem less impressive to us than self-driving cars or 3D printing. But technology doesn’t automatically have to be complicated. Simply put, we are always using technology when we use scientific knowledge to achieve a specific purpose, whether in industry or in our daily lives. From the discovery of the wheel to computers and from mp3 players to the latest technologies like self-driving cars, countless technological innovations have shaped daily life and will continue to influence it in the future.
Java please. Copy and paste your code and screenshot your output if you can to prove that its works. Make sure you run the program to see if the code actually works.
Answers
Reflection:
A. What I've learned in media and information literacy
Answers
Media and information literacy enables me to have access, analysis, evaluation & creation of media/information in various formats.
What is the lesson in media and information literacy?The media and information literacy a crucial skill in today's society, with prevalent issues like information overload & fake news. MIL helps develop critical thinking, awareness of biases and propaganda, and informed decision making.
So, It includes info retrieval, media analysis and evaluation, and ethical considerations in media creation. In the digital age, MIL is crucial. People need to spot credible sources and comprehend data presentation across media formats. As tech progresses, we must keep improving our MIL skills for media & info navigation. It's our social duty.
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