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vredina [299]
3 years ago
11

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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Write only in C, not C++.
yawa3891 [41]

Answer:

#include <iostream>

using namespace std;

int main() {

  int k;

double d;

string s;

cin >> k >> d >> s;

cout << s << " " << d << " " << k << "\n" << k << " " << d << " " << s; }

                                                                   

Explanation:

k is int type variable that stores integer values.

d is double type variable that stores real number.

s is string type variable that stores word.

cin statement is used to take input from user. cin takes an integer, a real number and a word from user. The user first enters an integer value, then a real number and then a small word as input.

cout statement is used to display the output on the screen. cout displays the value of k, d and s which entered by user.

First the values of k, d and s are displayed in reverse order. This means the word is displayed first, then the real number and then the integer separated again by EXACTLY one space from each other. " " used to represent a single space.

Then next line \n is used to produce a new line.

So in the next line values of k, d and s are displayed in original order (the integer , the real, and the word), separated again by EXACTLY one space from each other.

The program along with the output is attached.

7 0
4 years ago
Assume that success is a variable of type boolean that has been declared. Assume that processor refers to an object that provide
Iteru [2.4K]
Try {
AutoFactory.shutdown();
} catch (ProductionInProgressException e) {
AutoFactory.reset();
}
6 0
3 years ago
A system developer needs to provide machine-to-machine interface between an application and a database server in the production
nordsb [41]

Answer:

The correct option is (d) Use a service account and prohibit users from accessing this account for development work

Explanation:

Solution

As regards to the above requirement where the application and database server in the production environment will need to exchange the data once ever day, the following access control account practices would be used in this situation:

By making use of a service account and forbids users from having this account for development work.

The service account can be useful to explicitly issue a security context for services and thus the service can also access the local and the other resources and also prohibiting the other users to access the account for the development work.

Submitting an adhoc request daily is not a choice as this is required daily. Also, the servers can be different and cannot be put in one place. and, we cannot make use of the read-write permission to the members of that group.

7 0
3 years ago
Technical skills are also called soft skills.<br> Question 9 options:<br> True<br> False
mestny [16]

The statement is false, technical skills are those that serve to perform a specific function and are also called hard skills.

Technical skills are skills that include knowledge in the mechanical, computer, mathematical or scientific area that will allow a good performance of specific tasks.

  • A person with technical or hard skills is able to apply specific methods, procedures and techniques in a specialized field.

  • Soft skills refers to the characteristics and personal competencies that show how a person copes with others, it is related to emotional intelligence.

Therefore, we can conclude that technical or hard skills are the practical knowledge necessary to perform specific tasks, while soft skills are those skills associated with the ability to interact effectively on a personal level.

Learn more about technical skills here: brainly.com/question/10976877

8 0
2 years ago
Write code statements that prompt for and read a double value from the user, and then print the result of raising that value to
andriy [413]

Answer:

Following are the code in Java Language:

Scanner sc = new Scanner(System.in); // create a instance of scanner class

DecimalFormat frmt = new DecimalFormat("0.###"); // create a instance of                // DecimalFormat class

System.out.println ("Enter the value: ");

double number = scan.nextDouble(); // Read the value by thje user

System.out.println (fmmt.format(Math.pow(number, 4))); // display the value

Explanation:

Following are the description of the code

  • Create an instance scanner class i.e "sc".
  • Create an instance of DecimalFormat class i.e "frmt".
  • Read the value by the user in the "number" variable of type double by using the nextDouble()method.
  • Finally, display the value by using System.out.println method. In this, we call the method format. The Math.pow() function is used to calculating the power up to the fourth value.

5 0
3 years ago
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