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Yanka [14]
3 years ago
9

Describe how you would define the relation Brother-in-Law whose tuples have the form (x, y) with x being the brother-in-law of y

. b. Give appropriate relational algebra and SQL expressions that return the relation Brother-in-Law.
Computers and Technology
1 answer:
damaskus [11]3 years ago
8 0

Answer:

The expression is :

π[cd) + π(g,h) ],[π(e,f)+π(a,b)])

We will use foreign key and primary key

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In a complex system, many subsystems interact with one another. How do these systems interact in terms of inputs and outputs?
Artemon [7]

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I think in there transmission you know inputs into ports like for their own

Explanation:

likeslike Spanish and is obviously inputs and outputs their portsinto the portsdifferent ports you know

4 0
3 years ago
Many web browsers include _____ tools to make it easier for designers to locate the source of a style that has been applied to a
larisa86 [58]

Answer:

Developer tools.

Explanation:

The main aim of developer tools to loading the HTML(hypertext markup language), CSS and JavaScript it describes how much time takes the page to load in the web browser.

The developer tools make the task easier for the designer to locate the source code which is applied to a specific page element.​We can easily see the source code of the particular website by using the Developer tools. So it makes the task easier for programmers and developers.

4 0
3 years ago
Iven an array temps of double s, containing temperature data, compute the average temperature. Store the average in a variable c
ale4655 [162]

Answer:

import java.util.Arrays;

import java.util.Scanner;

public class num1 {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.println("Enter length of the array:");

       int len = in.nextInt();

       double [] temps = new double[len];

       double avgTem;

       int k =0;

       double total = 0;

       for( k=0; k<temps.length; k++){

           System.out.println("Enter values for the array");

           temps[k]=in.nextDouble();

       }

       System.out.println("The Arrays contains the following values");

       System.out.println(Arrays.toString(temps));

       // Computing the average of the values

       for(k=0; k<temps.length; k++){

           total = total+temps[k];

       }

       avgTem = total/(temps.length);

       System.out.println("The average Temperature is: "+avgTem);

   }

}

Explanation:

  • Using Java programming language
  • Import the Scanner class to receive user input
  • Prompt User for the length of the Array, receive and store in a variable len;
  • Declare a new double array of size len double [] temps = new double[len];
  • Using a for loop, continually prompt user to enter values into the array
  • Display the values of the array using Java's Arrays.toString method
  • Use another for loop to add up all the elements in the arraay and store in the variable called total
  • Outside the second for loop calculate the average avgTem = total/(temps.length);
  • Display the average temp.
6 0
3 years ago
Cisco's acquisition of Pure Digital, makers of the Flip video camera line, was largely considered a flop because comparable tech
juin [17]

Answer:

True

Explanation:

8 0
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If you’re assigned the job of writing a company newsletter or producing a product brochure, why is it important to learn about t
vitfil [10]

If you’re assigned the job of writing a company newsletter or producing a product brochure, it is important to learn about that document type and review examples that are considered to have a good layout and design because:

  1. It ensures conformity (especially if the organization already has a pattern).
  2. It will aid readability.
  3. It will help to guarantee a result that is satisfactory to the employers.

When given the job of writing a brochure, it is important to review examples that are considered standard.

This is because it will help to ensure an excellent final result that is in harmony with the company's requirements. It will also ensure conformity to standards.

Learn more about document type here:

brainly.com/question/1218796

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2 years ago
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