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Ray Of Light [21]
3 years ago
15

The Java Math class is a collection of static methods, one of which is sqrt(number). It accepts a numeric argument and returns t

he square root of the argument as a double. What would be the correct way to invoke sqrt to compute the square root of 25
Computers and Technology
2 answers:
Sveta_85 [38]3 years ago
3 0

In Java, you would simply type:

Math.sqrt(25);

To print the square root of 25 to the console, you would type:

System.out.println(Math.sqrt(25));

I hope this helps!

Svetradugi [14.3K]3 years ago
3 0

Answer:

math.sqrt25()

Explanation:

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Write a Java program that creates a two-dimensional array of type integer of size x by y (x and y must be entered by the user).
Law Incorporation [45]

Answer:

The java program is as follows:

import java.util.*;

public class Main{

public static void main(String[] args) {

 Scanner input = new Scanner(System.in);

 Random r = new Random();

 int x, y;

 x = input.nextInt();  

 y = input.nextInt();

 int[][] Array2D = new int[x][y];

 for(int i = 0; i < x ; i++){

     for(int j = 0; j < y; j++){          Array2D[i][j] = r.nextInt(9) + 1;      }

 }

 for(int i = 0; i < x ; i++){

     for(int j = 0; j < y; j++){          System.out.print(Array2D[i][j]+" ");      }

     System.out.println();

 }

 

 for(int i = 0; i < x ; i++){

     for(int j = 1; j < y; j+=2){          System.out.print(Array2D[i][j]+" ");      }

     System.out.println();

 }

}

}

Explanation:

This creates a random object

 Random r = new Random();

This declares x and y as integers

 int x, y;

This gets input for x

 x = input.nextInt();  

This gets input for y

 y = input.nextInt();

This declares the 2D array

 int[][] Array2D = new int[x][y];

The following iteration populates the array with integers 1 to 9

<em>  for(int i = 0; i < x ; i++){</em>

<em>      for(int j = 0; j < y; j++){          Array2D[i][j] = r.nextInt(9) + 1;      }</em>

<em>  }</em>

The following iteration prints all elements of the array

<em>  for(int i = 0; i < x ; i++){</em>

<em>      for(int j = 0; j < y; j++){          System.out.print(Array2D[i][j]+" ");      }</em>

<em>      System.out.println();</em>

<em>  }</em>

The following iteration prints all elements on the even column

<em>  for(int i = 0; i < x ; i++){</em>

<em>      for(int j = 1; j < y; j+=2){          System.out.print(Array2D[i][j]+" ");      }</em>

<em>      System.out.println();</em>

<em>  }</em>

<em />

3 0
2 years ago
Word processing software, spreadsheet software, database software, and presentation software are examples of what category of co
inysia [295]
<span>b. Application software 

Applications are type of software that are installed in a specific operating system of a computer that deviates from those system software installed together with the system itself. These third-party applications are necessary for other functions such as entertainment, business, leisure and other needs addressing of which the system software can't provide.

Examples:
Microsoft Office Word, Excel, Powerpoint</span>
8 0
3 years ago
Which is worse: Fast charging (Due to heat) or unplugging before reaching full capacity (On a normal charge)?
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Unplugging before reaching Capacity
4 0
3 years ago
The Polish mathematician Wacław Sierpiński described the pattern in 1915, but it has appeared in Italian art since the 13th cent
soldi70 [24.7K]

Answer:

/ Sierpinski.java

public class Sierpinski {

     // method to find the height of an equilateral triangle with side length =

     // length

     public static double height(double length) {

           // formula= length*sqrt(3)/2

           double h = (length * Math.sqrt(3)) / 2.0;

           return h;

     }

     // method to draw a filled triangle (pointed downwards) with bottom vertex

     // x,y

     public static void filledTriangle(double x, double y, double length) {

           // finding height

           double h = height(length);

           // filling triangle as a polygon

           // passing x, x-length/2, x+length/2 as x coordinates

           // and y, y+h, y+h as y coordinates

           StdDraw.filledPolygon(new double[] { x, x - (length / 2.0),

                       x + (length / 2.0) }, new double[] { y, y + h, y + h });

     }

     // method to draw an n level sierpinski triangle

     public static void sierpinski(int n, double x, double y, double length) {

           // checking if n is above 0 (base condition)

           if (n > 0) {

                 // drawing a filled triangle with x, y as bottom coordinate, length

                 // as side length

                 filledTriangle(x, y, length);

                 // drawing the triangle(s) on the top

                 sierpinski(n - 1, x, y + height(length), length / 2);

                 // drawing the triangle(s) on the left side

                 sierpinski(n - 1, x - (length / 2.0), y, length / 2);

                 // drawing the triangle(s) on the right side

                 sierpinski(n - 1, x + (length / 2.0), y, length / 2);

           }

     }

     public static void main(String[] args) {

           // parsing first command line argument as integer, if you dont provide

           // the value while running the program, this program will cause

           // exception.

           int n = Integer.parseInt(args[0]);

           // length of the outline triangle

           double length = 1;

           // finding height

           double h = height(length);

           // drawing a triangle (pointed upwards) to represent the outline.

           StdDraw.polygon(new double[] { 0, length / 2, length }, new double[] {

                       0, h, 0 });

           // drawing n level sierpinski triangle(s) with length / 2, 0 as x,y

           // coordinates and length / 2 as initial side length

           sierpinski(n, length / 2, 0, length / 2);

     }

}

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3 years ago
2. Because technology is always changing, there are new applications being developed constantly. (1 point)
Zepler [3.9K]
True because we need new tech
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Read 2 more answers
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