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svetlana [45]
3 years ago
7

What does a pencil icon in the row selector area indicate?

Computers and Technology
1 answer:
Veronika [31]3 years ago
8 0

Answer:

c

Explanation:

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Write a program that deliberately contains an endless or infinite while loop. The loop should generate multiplication questions
Westkost [7]

Answer:

The Java code is given below with appropriate variable names for better understanding

Explanation:

import java.util.Random;

import java.util.Scanner;

public class MultiplicationQuestions {

   public static void main(String[] args) {

       Scanner scan = new Scanner(System.in);

       Random rand = new Random();

       int n1, n2, result, total = 0, correct = 0;

       char ch = 'y';

       while(ch == 'y'){

           n1 = 1 + rand.nextInt(9);

           n2 = 1 + rand.nextInt(9);

           System.out.print("What is "+n1+" * "+n2+" ? ");

           result = scan.nextInt();

           if(result==n1*n2){

               System.out.println("Correct. Nice work!");

               correct++;

           }

           else{

               System.out.println("Incorrect. The product is "+(n1*n2));

           }

           System.out.print("Want more questions y or n ? ");

           ch = scan.next().charAt(0);

           total++;

       }

       System.out.println("You scored "+correct+" out of "+total);

   }

}

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Write a program that will predict the size of a population of organisms. The program should ask the user for the starting number
sineoko [7]

Answer:

// using c++ language

#include "stdafx.h";

#include <iostream>

#include<cmath>

using namespace std;

//start

int main()

{

 //Declaration of variables in the program

 double start_organisms;

 double daily_increase;

 int days;

 double updated_organisms;

 //The user enters the number of organisms as desired

 cout << "Enter the starting number of organisms: ";

 cin >> start_organisms;

 //Validating input data

 while (start_organisms < 2)

 {

     cout << "The starting number of organisms must be at least 2.\n";

     cout << "Enter the starting number of organisms: ";

     cin >> start_organisms;

 }

 //The user enters daily input, here's where we apply the 5.2% given in question

 cout << "Enter the daily population increase: ";

 cin>> daily_increase;

 //Validating the increase

 while (daily_increase < 0)

 {

     cout << "The average daily population increase must be a positive value.\n ";

     cout << "Enter the daily population increase: ";

     cin >> daily_increase;

 }

 //The user enters number of days

 cout << "Enter the number of days: ";

 cin >> days;

 //Validating the number of days

 while (days<1)

 {

     cout << "The number of days must be at least 1.\n";

     cout << "Enter the number of days: ";

     cin >> days;

 }

 

 //Final calculation and display of results based on formulas

 for (int i = 0; i < days; i++)

 {

     updated_organisms = start_organisms + (daily_increase*start_organisms);

     cout << "On day " << i + 1 << " the population size was " << round(updated_organisms)<<"."<<"\n";

     

     start_organisms = updated_organisms;

 }

 system("pause");

  return 0;

//end

}

Explanation:

6 0
3 years ago
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