URGENT NEED HELP WITH 7.6 LESSON PRACTICE QUESTIONS 7 & 8

def mystery(a = 2, b = 1, c = 3): return 2 * a + b + 3 * c
What is the output for mystery(1)
What is the output for mystery()?

RC4 is a symmetric key stream cipher that is widely used for secure communication over the internet. It operates on bytes of data and generates a stream of pseudo-random bytes that are XORed with the plaintext to produce the ciphertext.

The RC4 algorithm consists of two parts: key setup and encryption/decryption.

Key setup:

Encryption/decryption:

To implement RC4 in C++, you would need to write code to perform the following steps:

Therefore, below are some general guidelines on how to implement RC4 in C++:

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The program based on the information that given is illustrated below.

#include <iostream>

using namespace std

int main(){

int arr[5][5];

// sample taking 5 elements

arr[0][0] = 1232;arr[0][1] = 10;arr[0][2] = 23;arr[0][3] = 45;arr[0][4] = 56;

arr[1][0] = 2343;arr[1][1] = 45;arr[1][2] = 43;arr[1][3] = 24;arr[1][4] = 78;

arr[2][0] = 2344;arr[2][1] = 34;arr[2][2] = 45;arr[2][3] = 45;arr[2][4] = 45;

arr[3][0] = 3423;arr[3][1] = 67;arr[3][2] = 6;arr[3][3] = 65;arr[3][4] = 56;

arr[4][0] = 3425;arr[4][1] = 87;arr[4][2] = 46;arr[4][3] = 45;arr[4][4] = 66;

int ch,flag=1,i,j,id,min,max;

// looping for menu

while(flag){

cout<<endl;

cout<<"1 View All Students Records "<<endl;

cout<<"2 View Students Record by ID "<<endl;

cout<<"3 show highest and lowest final scores "<<endl;

cout<<"4 Quit"<<endl;

cin>>ch;

switch(ch){

case 1:

// displaying the all elements from the array

for(i=0;i<5;i++){

for(j=0;j<5;j++){

cout<<arr[i][j]<<"\t";

}

cout<<endl;

}

break;

case 2:

// reading Id from user and searching in array

cout<<"Enter Students ID";

cin>>id;

j=-1;

for(i=0;i<5;i++){

if(arr[i][0]==id)

for(j=0;j<5;j++)

cout<<arr[i][j]<<"\t";

}

// if Id notfound in array showing error message

if(j==-1)

cout<<id<<" ID does exist";

break;

case 3:

// finds min from the final scores

min=arr[0][4];

for(int i=0;i<5;i++)

if(min>arr[i][4])

min = arr[i][4];

// finds the max final scores

max=arr[0][4];

for(int i=0;i<5;i++)

if(max<arr[i][4])

max = arr[i][4];

cout<<"Max Final Score : "<<max;

cout<<"Min Final Score : "<<min;

break;

case 4:

flag = 0;

break;

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The tag that has been discontinued in HTML5 is A. <basetext.

The <basefont> tag has been discontinued in HTML5. This tag was used to specify the base font size, face, and color for a web page.

In HTML5, it is recommended to use CSS to define the font styles instead of using deprecated font tags such as <basefont>. The <basetext> tag and <selects> tags are not valid HTML tags. However, the <textarea> tag is still a valid HTML tag in HTML5 and is used to create a multi-line text input field.

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Answer:

Examples of few editors include Windows Notepad, OS Edit command, Brief, Epsilon, EMACS, and vim or vi. Name and version of text editor can vary on different operating systems. For example, Notepad will be used on Windows and vim or vi can be used on windows as well as Linux or UNIX.

Explanation: If this is not what your look for then am sorry but i can't help you.

Here's the C++ code to accomplish the task:

#include <iostream>

#include <cstring>

#include <cctype>

using namespace std;

int main() {

   char passCode[4];

   bool containsAlpha = false;

   cout << "Enter a 3-character passcode: ";

   cin >> passCode;

   for (int i = 0; i < strlen(passCode); i++) {

       if (isalpha(passCode[i])) {

           containsAlpha = true;

           break;

       }

   }

   if (containsAlpha) {

       cout << "Valid passcode\n";

   } else {

       cout << "Invalid passcode\n";

   }

   return 0;

}

In this code, we first declare the passCode variable as a character array of size 4 to accommodate the 3-character passcode plus the null terminator. We also declare the containsAlpha boolean variable and initialize it to false.

We then prompt the user to enter a 3-character passcode and read it into the passCode variable using the cin function.

Next, we loop through the characters in passCode using a for loop and use the isalpha function from the cctype library to check if the current character is alphabetic. If it is, we set containsAlpha to true and break out of the loop.

Finally, we use an if-else statement to check the value of containsAlpha and output either "Valid passcode" or "Invalid passcode" accordingly.

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Answer:

// MichiganCities.cpp - This program prints a message for invalid cities in Michigan.

// Input: Interactive

// Output: Error message or nothing

#include <iostream>

#include <string>

using namespace std;

int main()

{

   // Declare variables

   string inCity; // name of city to look up in array

   const int NUM_CITIES = 10;

   // Initialized array of cities

   string citiesInMichigan[] = {"Acme", "Albion", "Detroit", "Watervliet", "Coloma", "Saginaw", "Richland", "Glenn", "Midland", "Brooklyn"};

   bool foundIt = false; // Flag variable

   int x; // Loop control variable

   // Get user input

   cout << "Enter name of city: ";

   cin >> inCity;

   // Write your loop here

   for (x = 0; x < NUM_CITIES; x++) {

       // Write your test statement here to see if there is

       // a match. Set the flag to true if city is found.

       if (citiesInMichigan[x] == inCity) {

           foundIt = true;

           break;

       }

   }

   if (!foundIt)

       cout << "Not a city in Michigan." << endl;

   else

       cout << "Valid city in Michigan." << endl;

   return 0;

} // End of main()

Explanation:

In this version of the code, we added a loop that goes through the citiesInMichigan array and compares each element with the input city using an if statement. If a match is found, the foundIt flag is set to true and the loop is exited using break. Finally, we added an else block to the conditional statement that prints "Valid city in Michigan." if the city is found.

If you added section breaks to your manuscript, formatting marks make it simple to determine where they start and end. Choose Display all nonprinting characters under Home by going to Home. Press Delete after choosing the section break.

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New users of the School database should get training in navigation, data entry, data retrieval, security, and database introduction.

Fortunately for you, whether at the gym or elsewhere, there are five fundamental components that you may concentrate on to achieve your wellness goals: cardiovascular fitness, strength training, core exercises, flexibility, and stretching. The majority of fitness training programmes are built around aerobic fitness, generally known as cardio.

Any effective training program's main objective is to help participants learn new techniques and procedures. Instead of focusing on each and every aspect of an employee's job, we've found that the best training plan examples pinpoint the fundamental duties of each position.

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It seems like you are looking for help with a coding problem related to "3.4.4 go down the slide part two." To better assist you, I will need more context and information about the coding language and problem details.

However, here is a general outline of how to approach a slide-based coding problem:

1. Identify the programming language you are using (e.g., Python, JavaScript, Java, etc.).
2. Define the slide structure and any related variables or objects. For example, in an object-oriented language, you might create a Slide class with properties like height, width, and position.
3. Create a function or method for the "go down the slide" action. This function should take any necessary parameters (e.g., user input or slide properties) and return an updated state for the slide and/or user.
4. Implement the logic for moving down the slide, taking into account any physics or rules specific to your problem. This could involve updating the position, velocity, or other attributes of the user and slide objects.
5. Test your code to ensure it works correctly, and modify it as needed based on the desired outcome or any additional requirements.

Please provide more information about your specific problem so I can offer more tailored guidance.

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Answer:

d. None of the options is the correct answer since all of the options listed are major landmarks of fifth-generation computers.

Explanation:

The development of fifth-generation computers was characterized by advancements in vector processing, parallel processing, computer networks, and the use of single-user workstations. These advancements helped to improve the performance, capabilities, and functionality of computers and paved the way for further technological developments in the field of computing.

Wide use of computer networks and the increasing use of single-user workstations is not a major landmark of fifth generation computers. The correct option is c.

A computer network is a collection of connected computing devices that share resources, data, and information. Computers, servers, routers, switches, printers, and other peripherals are examples of such devices.

The widespread use of computer networks and the increasing use of single-user workstations is not a significant feature of fifth generation computers because they were already common in the fourth generation.

Fifth-generation computers are notable for their use of advanced parallel processing technologies, artificial intelligence, natural language processing, expert systems, and high-level programming languages.

Furthermore, fifth-generation computers are built with advanced user interfaces and multimedia applications in mind.

Thus, the correct option is c.

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Here's the code:

ItemToPurchase.java:

public class ItemToPurchase {

   private String itemName;

   private int itemPrice;

   private int itemQuantity;

   public ItemToPurchase() {

       itemName = "none";

      itemPrice = 0;

       itemQuantity = 0;

   }

   public void setName(String name) {

       itemName = name;

   }

   public String getName() {

       return itemName;

   }

   public void setPrice(int price) {

       itemPrice = price;

   }

   public int getPrice() {

       return itemPrice;

   }

   public void setQuantity(int quantity) {

       itemQuantity = quantity;

   }

   public int getQuantity() {

       return itemQuantity;

   }

}

import java.util.Scanner;

public class ShoppingCartPrinter {

   public static void main(String[] args) {

      Scanner scnr = new Scanner(System.in);

       ItemToPurchase item1 = new ItemToPurchase();

       System.out.println("Item 1");

       System.out.println("Enter the item name:");

       item1.setName(scnr.nextLine());

       System.out.println("Enter the item price:");

       item1.setPrice(scnr.nextInt());

      System.out.println("Enter the item quantity:");

       item1.setQuantity(scnr.nextInt());

       scnr.nextLine();

       ItemToPurchase item2 = new ItemToPurchase();

       System.out.println("\nItem 2");

       System.out.println("Enter the item name:");

       item2.setName(scnr.nextLine());

      System.out.println("Enter the item price:");

       item2.setPrice(scnr.nextInt());

       System.out.println("Enter the item quantity:");

       item2.setQuantity(scnr.nextInt());

       int totalCost = item1.getPrice() * item1.getQuantity() + item2.getPrice() * item2.getQuantity();

      System.out.println("\nTotal cost: $" + totalCost);

   }

}

This implementation creates two objects of the ItemToPurchase class, prompts the user for their names, prices, and quantities, calculates the total cost, and prints it out.

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Answer:

Constructing a wall to divide an office can be considered a project.

A project is a temporary endeavor with a specific goal or objective, and constructing a wall to divide an office fits this definition. It has a specific goal (dividing the office) and is temporary in nature (once the wall is constructed, the project is complete).

Additionally, constructing a wall to divide an office may require planning, resources, and coordination with stakeholders such as the building owner, architects, engineers, contractors, and employees who will be impacted by the construction. This would further support the argument that it is indeed a project.

The answer is Option B, a green wavy line.

Martin Luther king

obvio q es martin luther king obvoii

Answer:

if you are using your school email account on your own computer and home network, it is unlikely that your school can see or track your search history or web activity. However, if you are using your school email account on a school computer or network, they may be able to monitor your activity through a proxy or firewall.

Explanation:

schools may have access to your email traffic and usage if you use their email account, regardless of the device or network you use. They may have an Acceptable Use Policy that allows them to monitor your email for security or network management reasons.

Therefore, it is advisable to refrain from using your school email account as a profile on your web browser or for logging into other websites. You may want to use your personal email account as your default profile on your computer and browser.

you should always check with your school for their specific policies and practices regarding email and internet privacy.

This code seems to be a student registration system where users can create accounts, register for courses, and view their information. It includes classes for different types of users, such as administrators, management, lecturers, and students.

The code starts by including several libraries, including iostream and fstream, which are used for input and output and file handling, respectively.

The main class is called "user," which is then inherited by other classes for different types of users. The "user" class has several protected variables, including courseCode, coursename, desc, position, un, and pw, which are used to store information such as course codes, course names, descriptions, and user login credentials.

The "welcome" function is used to display a welcome message to the user, while the "login" function is used to prompt the user to enter their login credentials and check if they are valid.

The "viewStudent" function is used to display information about the student, such as their courses and registration details.

The main function includes a menu that allows users to log in and perform various actions, such as creating new accounts, registering for courses, and viewing information. The menu is implemented using a switch statement that calls different functions based on the user's position.

Overall, the code seems to be a work-in-progress, with several missing pieces, such as the implementation of the "createAccount" and "createCourse" functions, and some parts of the code seem to be incomplete, such as the "regsubs" function, which is missing the implementation of the switch statement.

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Answer:

C. can prevent data from getting corrupt.

Explanation:

The tech careers builds infrastructure for networking, telephones, radio, and other communication channels is Internet service technician. Option D

The tech career that builds infrastructure for networking, telephones, radio, and other communication channels is Internet service technician.

Internet service technicians install, maintain, and repair various communication systems and devices such as routers, switches, modems, and cables.

They also ensure that the network and communication channels are functioning efficiently and securely.

Unlike customer service representatives, web designers, and social media marketers, internet service technicians have a specialized skill set that allows them to work on the technical aspects of communication infrastructure.

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a) The buffer is needed to ensure smooth playback of streamed media by storing a certain amount of data in advance. This is done to prevent interruptions due to network congestion or variations in the streaming rate.

b) i) The amount of data streamed in 2 seconds is (1.5Mbps * 2s) = 3MB. The amount of data played back in 2 seconds is (600kbps * 2s) = 150KB. Therefore, the amount of data stored in the buffer after 2 seconds is (3MB - 150KB - 200KiB) = 2.6MB.

ii) To determine how long it will take before the buffer reaches its higher limit of 1.8MiB, we can use the following formula:

Time to reach limit = (higher limit - lower limit - current buffer size) / streaming rate

= (1.8MiB - 200KiB - 2MiB) / 1.5Mbps

= 8 seconds

Therefore, it will take 8 seconds for the buffer to reach its higher limit.

c) To overcome the problem of frequent pausing of playback, a larger buffer can be used. This will allow more data to be stored in advance, reducing the impact of network congestion or variations in the streaming rate.'

Additionally, adaptive bitrate streaming can be used, where the streaming rate is dynamically adjusted based on the available network bandwidth, to ensure a more consistent streaming experience. Finally, a content delivery network (CDN) can be used to deliver the media from servers located closer to the viewer, reducing the impact of network latency and improving overall streaming performance.

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Answer:

Here are the numbers from 19 to 35, with Deep Blue inserted between 23 and 24:

19, 20, 21, 22, Deep Blue, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35.

Answer:

The combined use of media, such as movies, music, lighting, and the Internet, as for education, entertainment, or advertising.

Deciding you need to get a "good" job because that is what "smart" people do, reflects intrinsic motivation is false.

Intrinsic motivation refers to engaging in an activity or behavior because it is inherently enjoyable or fulfilling, rather than for any external reward or pressure. For example, someone who enjoys playing the piano because it brings them joy and a sense of accomplishment is intrinsically motivated to play the piano.

Extrinsic motivation, on the other hand, refers to engaging in an activity or behavior for external reasons, such as receiving a reward, avoiding punishment, or meeting external expectations. For example, someone who practices the piano to win a music competition or to please their parents is extrinsically motivated to play the piano.

Therefore, In the given statement, the motivation for getting a "good" job is based on external factors such as societal expectations and the desire for success and status, rather than internal enjoyment or fulfillment.

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Answer:

1. Click on the Start button

2. Select Run

3. Type cmd and press Enter

4. Type cd c:\TC\bin in the command prompt and press Enter

5. Type TC press Enter

6. Click on File -> New in C Editor window

7. Type the program

8. Save it as FileName.c (Use shortcut key F2 to save)

Answer:Java, C++, and Ruby

Explanation:

Like Python and JavaScript, many languages that are not strictly object-oriented also provide features like classes and objects inspired by object-oriented programming.

python

# Ask the user for their last name, first name, and SSN

last_name = input("Enter your last name: ")

first_name = input("Enter your first name: ")

ssn = input("Enter your SSN (no spaces or dashes): ")

# Generate the user's initials

initials = first_name[0].upper() + last_name[0].upper()

# Generate the user's email address

Below is how the program works:

The program asks the user to input their last name, first name, and SSN using the input() function.

The program uses string manipulation to generate the user's initials. We take the first character of the first name and the first character of the last name, convert them to uppercase using the upper() function, and concatenate them together using the + operator.

Therefore, The program displays the user's initials, email address, and last 4 digits of SSN using the print() function.

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Answer: python

Explanation:

I find it easiest to work with

CORPULENT means obese, which refers to a person who is excessively overweight or obese.