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nignag [31]
2 years ago
9

Write an expression that will cause the following code to print "18 or less" if the value of user_age is 18 or less. Write only

the expression. Sample output with input: 17 18 or less
Computers and Technology
2 answers:
Tcecarenko [31]2 years ago
7 0

Answer:

user_age = int(input())

if user_age <= 18:

  print('18 or less')

else:

  print('Over 18')

Explanation:

#define user_age with: integer (input(' #from user')

user_age = int(input())

#"if" statement: user_age is less than or equal to 18 than ///

if user_age <= 18:

#Print ('Enter desired output here')

  print('18 or less')

#"else" statement: If above is not true then ///

else:

#Print ('Enter desired output here')

  print('Over 18')

lana [24]2 years ago
6 0

Answer:

if (user_age<=18){

           System.out.println("18 or less");

       }

Explanation:

The above expression in Java will print "18 or less" if the input is less than 18.

Consider a complete java program that request a user to input his/her age below and prints "18 or Less" if the user age is less or equal to 18.

import java.util.Scanner;

public class num2 {

   public static void main(String[] args) {

   Scanner in = new Scanner(System.in);

       System.out.println("enter age:");

       int user_age =in.nextInt();

       if (user_age<=18){

           System.out.println("18 or less");

       }

       else

       {

           System.out.println("greater than 18");

       }

   }

}

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Write the definition of a function named quadratic that receives three double parameters a, b, c. If the value of a is 0 then th
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Answer:

#include <iostream>

#include <cmath>

using namespace std;

//initialize function quadratic

void quadratic(double, double, double);

int main() {

   //declare double variables a, b and c

   double a,b,c;

   //take input from user

   cin>>a>>b>>c;

   //call function quadratic

   quadratic(a,b,c);

return 0;

}

void quadratic(double a, double b, double  c){

   double root,n;

   //check if variable a is equal to zero

   if(a==0){

       cout<<"no solution for a=0"<<endl;

       return;

   }

   //check if b squared - 4ac is less than zero

   else

   if(((b*b)-(4*a*c))<0){

       cout<<"no real solutions"<<endl;

       return;

   }

   //print the largest root if the above conditions are not satisfied

   else{

       n=((b*b)-(4*a*c));

       root=(-b + sqrt(n)) / (2*a);

       cout<<"Largest root is:"<<root<<endl;

   }

   return ;

}

Explanation:

Read three double variables a, b and c from the user and pass it to the function quadratic. Check if the value of variable a is equal to zero. If true, print "no solution for a=0". If this condition is false, check if b squared - 4ac is less than zero. If true, print "no real solutions". If this condition is also false, calculate the largest solution using the following formula:

largest root = (-b + square root of (b squared - 4ac)) / (2*a)

Input 1:

2 5 3

Output 2:

Largest root is:-1

Input 2:

5 6 1

Output 2:

Largest root is:-0.2

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Answer:

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