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3 years ago

How can you solve real world mathematical problems using two linear equations in two variables

Computers and Technology

1 answer:

ipn [44]3 years ago

3 0

Answer:

import numpy as np

a = int(input ("Enter a"))

b = int(input ("Enter b"))

c = int(input ("Enter c"))

d = int(input ("Enter d"))

c1 = int(input ("Enter c1"))

c2 = int(input ("Enter c2"))

array1 =[[a, b],[c, d]]

A = np.array (array1)

B = np.array ([c1, c2])

X = np.linalg.inv (A).dot (B)

print (X)

Explanation:

let ax + by =c1

cx + dy =c2

We have used the above NumPy library that has the methods for matrix calculation, and here we have used matrix multiplication, and the inverse of a matrix to find the value of x and y.

We know AX=B

X = inv A. B

And this we have used above. We can calculate inv A and do matrix multiplication using NumPy. And thus we get the above solution.

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2 years ago

Which terms means device that converts one voltage to another ?

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2 years ago

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barxatty [35]

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2 years ago

Read 2 more answers

This is your code.

lubasha [3.4K]

Answer:

Explanation:

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2 years ago

Consider an array inarr containing atleast two non-zero unique positive integers. Identify and print, outnum, the number of uniq

Delvig [45]

Answer:

Program.java

import java.util.Scanner;

public class Program {

public static boolean isPalindrome(String str){

int start = 0, end = str.length()-1;

while (start < end){

if(str.charAt(start) != str.charAt(end)){

return false;

}

start++;

end--;

}

return true;

}

public static int countPalindromePairs(String[] inarr){

int count = 0;

for(int i=0; i<inarr.length; i++){

for(int j=i+1; j<inarr.length; j++){

StringBuilder sb = new StringBuilder();

sb.append(inarr[i]).append(inarr[j]);

if(isPalindrome(sb.toString())){

count++;

}

return count == 0 ? -1 : count;

}

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

String line = sc.next();

String[] inarr = line.split(",");

int count = countPalindromePairs(inarr);

System.out.println("RESULT: "+count);

}

Explanation:

OUTPUT:

3 0

3 years ago

How can you solve real world mathematical problems using two linear equations in two variables​

How can you solve real world mathematical problems using two linear equations in two variables