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antoniya [11.8K]
3 years ago
13

1. Type a statement that reads a user-entered integer into variable numUsers. Assume scnr already exists.

Computers and Technology
1 answer:
ASHA 777 [7]3 years ago
3 0

Answer:

Question 1:

int numUsers = scnr.nextInt();

Question 2:

public class OutputExample {

public static void main (String [] args) {

int numCars = 99;

Scannerscnr=new Scanner(System.in);

numCars=scnr.nextInt();

System.out.println("There are "+numCars+" cars");

return;

}

}

Question 3:

import java.util.Scanner;

public class Errors {

public static void main(String [] args) {

int userNum = 5;

System.out.println ("Predictions are hard. ");

System.out.print("Especially ");

System.out.print("about the future.");

System.out.println("Num is: "+userNum);

return;

}

}

Explanation:

In Question 1, the statement int numUsers = scnr.nextInt();  reads a new integer value from the keyboard and assigns it to the variable numUsers.

In question 2, Concatenation is used to format the print output.

In question 3, care is taken to fix each of the syntax errors (missing double quotes, semi-colon, concatenation)

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Seth would like to make sure as many interested customers as possible are seeing his business’s website displayed in their searc
GenaCL600 [577]

Answer:

Hi! Make sure that the website has a few things. Proper Keywords, the pages have the proper tags, a form on the website, contact information, CIty State, Etc., Then a phone number. Social media icons that link properly to the social media pages.

Explanation:

5 0
3 years ago
Write a program that allows a user to choose to roll between 1 and 100 dice between 1 and 1000 times
s344n2d4d5 [400]

Answer:

Here is a Python program that allows a user to choose to roll between 1 and 100 dice between 1 and 1000 times. The program uses a while loop to continuously prompt the user for input until they enter a valid number of dice and rolls. It also uses a for loop to simulate the dice rolls and a random module to generate random numbers for the dice rolls.

import random

while True:

   # Prompt the user for the number of dice to roll

   num_dice = int(input("Enter the number of dice to roll (1-100): "))

   if num_dice < 1 or num_dice > 100:

       continue

   # Prompt the user for the number of rolls to perform

   num_rolls = int(input("Enter the number of rolls to perform (1-1000): "))

   if num_rolls < 1 or num_rolls > 1000:

       continue

   # Simulate the dice rolls and print the results

   for i in range(num_rolls):

       roll = 0

       for j in range(num_dice):

           roll += random.randint(1, 6)

       print(f"Roll {i+1}: {roll}")

   # Ask the user if they want to roll again

   again = input("Roll again? (Y/N): ").upper()

   if again != "Y":

       break

Explanation:

In this program, we first import the random module to use its randint function to generate random numbers for the dice rolls. We then enter a while loop that will continuously prompt the user for input until they enter a valid number of dice and rolls. Within the while loop, we prompt the user for the number of dice to roll and the number of rolls to perform. If the user enters an invalid number of dice or rolls, we continue back to the beginning of the loop and prompt the user again.

Once the user has entered a valid number of dice and rolls, we use a for loop to simulate the dice rolls. For each roll, we use another for loop to roll the specified number of dice and add up the results. We then print the total for each roll. After all of the rolls have been performed, we ask the user if they want to roll again. If they enter "Y", we continue back to the beginning of the while loop to prompt them for new input. If they enter anything else, we break out of the while loop and end the program.

Overall, this program allows a user to choose to roll between 1 and 100 dice between 1 and 1000 times, and simulates the dice rolls using random numbers and loops.

8 0
1 year ago
What would you have to know about the pivot columns in an augmented matrix in order to know that the linear system is consistent
Scrat [10]

Answer:

The Rouché-Capelli Theorem. This theorem establishes a connection between how a linear system behaves and the ranks of its coefficient matrix (A) and its counterpart the augmented matrix.

rank(A)=rank\left ( \left [ A|B \right ] \right )\:and\:n=rank(A)

Then satisfying this theorem the system is consistent and has one single solution.

Explanation:

1) To answer that, you should have to know The Rouché-Capelli Theorem. This theorem establishes a connection between how a linear system behaves and the ranks of its coefficient matrix (A) and its counterpart the augmented matrix.

rank(A)=rank\left ( \left [ A|B \right ] \right )\:and\:n=rank(A)

rank(A)

Then the system is consistent and has a unique solution.

<em>E.g.</em>

\left\{\begin{matrix}x-3y-2z=6 \\ 2x-4y-3z=8 \\ -3x+6y+8z=-5  \end{matrix}\right.

2) Writing it as Linear system

A=\begin{pmatrix}1 & -3 &-2 \\  2& -4 &-3 \\ -3 &6  &8 \end{pmatrix} B=\begin{pmatrix}6\\ 8\\ 5\end{pmatrix}

rank(A) =\left(\begin{matrix}7 & 0 & 0 \\0 & 7 & 0 \\0 & 0 & 7\end{matrix}\right)=3

3) The Rank (A) is 3 found through Gauss elimination

(A|B)=\begin{pmatrix}1 & -3 &-2  &6 \\  2& -4 &-3  &8 \\  -3&6  &8  &-5 \end{pmatrix}

rank(A|B)=\left(\begin{matrix}1 & -3 & -2 \\0 & 2 & 1 \\0 & 0 & \frac{7}{2}\end{matrix}\right)=3

4) The rank of (A|B) is also equal to 3, found through Gauss elimination:

So this linear system is consistent and has a unique solution.

8 0
3 years ago
¿Cuáles son los 5 Procesadores de textos on line más usados?
labwork [276]

Answer:

5 Procesadores de textos

Explanation:

Google Docs.

Textilus - Edición Microsoft Word.

TextEdit.

Kingsoft Office Writer.

Páginas.

8 0
3 years ago
Var name = prompt("Enter the name to print on your tee-shirt");
Vinil7 [7]

Willy Shakespeare has 17 characters. It's higher than 12,so the output will be Too long. Enter a name with fewer than 12 characters.

Letter a.

3 0
3 years ago
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