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Travka [436]
3 years ago
13

Assume that ip has been declared to be a pointer to int and that enrollment has been declared to be an array of 20 elements . As

sume also that section has been declared to be an int and has been initialized to some value between 5 and 10.Write a statement that makes ip point to the element in the array indexed by section
Computers and Technology
1 answer:
Vitek1552 [10]3 years ago
5 0

Answer:

ip = enrollment + section;

Explanation:

The variable ip has been declared to be a pointer to int.

int * ip;

The variable enrollment has been declared as an array of 20 elements .

int enrollment[20];

The variable section has been declared as an int.

int section;

In order to make ip point to the element in the array indexed by section, we can use the following statement :

ip = enrollment + section;

This will make ip point to enrollment[section].

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9.19 LAB: Words in a range (lists) Write a program that first reads in the name of an input file, followed by two strings repres
Anestetic [448]

Answer:

9.2. Métodos del Objeto File (Python para principiantes)

Explanation:

8 0
3 years ago
Write a program to calculate the great circle distance between two points on the surface of a sphere. If p1(x1, y1) and p2(x2,y2
Tamiku [17]

Answer:

import java.lang.*;

public class distance { public static double distance(double latitude1,

                                     double latitude2, double longitude1,

                                     double longitude2)

       {

      // Convert Latitude and Longitude to Radians

           longitude1 = Math.toRadians(longitude1);

           longitude2 = Math.toRadians(longitude2);

           latitude1 = Math.toRadians(latitude1);

           latitude2 = Math.toRadians(latitude2);

           

           double d_longitude = longitude2 - longitude1;

           double d_latitude = latitude2 - latitude1;

           double a = Math.pow(Math.sin(d_latitude / 2), 2)

                   + Math.cos(latitude1) * Math.cos(latitude2)

                   * Math.pow(Math.sin(d_longitude / 2),2);

           double val = 2 * Math.asin(Math.sqrt(a));

           // Radius of earth in kilometers is 6371

           double earth_radius = 6371;

           // Calculate and return the distance

           return(val * earth_radius);

       }

       // Main Method

       public static void main(String[] args)

       {

           double latitude1 = 67.32055555555556;

           double latitude2 = 83.31861111111111;

           double longitude1 = -1.7217899;

           double longitude2 = -1.6567799;

           System.out.println(distance(latitude1, latitude2,

                   longitude1, longitude2) + " K.M");

       }

   }

Explanation:

This program is implemented in Java programming language

The formula for the shortest distance between two points on the earth is:

Distance = 3963.0 * arccos[(sin(lat1) * sin(lat2)) + cos(lat1) * cos(lat2) * cos(long2 – long1)]

The latitude and longitude of the two points must be known

The latitude and longitude are converted into radians using built in methods in java.

Take value for the radius of the earth in Kilometers  6371;

Note that a seperate method has been created to calculate the distance

In the driver method (main), values for latitude and logitudes for both places have been hard-corded, then the method distance is called and passed those values

Note also that the distance has been calculated in Kilometers

8 0
3 years ago
The area of a rectangle is the rectangle's length times its width.
aliya0001 [1]

Answer:

Following are program to this question:

#include <iostream> //defining header file  

using namespace std;  

int main() //defining main method

{

   double len1,len2,wid1,wid2,area1,area2; //defining double variable

   cout << "Enter first rectangle length: "; //print message

   cin >> len1;//input first rectangle length value

   cout << "Enter first rectangle width: ";//print message

   cin >> wid1; //input first rectangle width value

   area1 = len1*wid1; //calculate area and holds its value  

   cout << "Enter second rectangle length: ";//print message

   cin >> len2; //input second rectangle length value

   cout << "Enter second rectangle width: ";//print message

   cin >> wid2; //input second rectangle width value

   area2 = len2*wid2; //calculate area and holds its value  

   if(area1 > area2) //check condition area1 value is greater then area2

   {

    cout << "First rectangle area value is greater";//print message

   }

   else if(area2 > area1)//check condition area2 value is greater then area1

   {

       cout << "Second rectangle area value is greater";//print message

   }

   else //else block

   {

       cout << "both rectangle area is same";//print message

   }

   return 0;

}

Output:

Enter first rectangle length: 3

Enter first rectangle width: 5

Enter second rectangle length: 5

Enter second rectangle width: 3

both rectangle area is same

Explanation:

The description of the above program can be described as follows:

  • In the given code, the double variable is declared, which is "len1, len2, wid1, wid2, area1, and area2". In the next line, a message is a print, that accepts "len1 and wid1" value in the next line, the area variable is used that calculates area1.
  • In the next step, the "len2 and wid2"  variable is used, that accepts values and calculates its area, and in the next line, the conditional statement is used that checks its value.
  • In the if the block it uses both area1 and area2 value, that checks area1 is greater then area2, it is will print first rectangle area is greater.  
  • Otherwise, it will go to else if block, that checks area2 is greater then area1, it is will print second rectangle area is greater.  In the else section, it will print both equal areas.

4 0
3 years ago
The point at coordinates (2, -18) is in what direction from the origin?
laila [671]
On a graph, move 2 spaces to the right and from there move 18 spaces down. Now, where you've ended, make a dot. The distance fro the origin is -2/18 (as a fraction).
4 0
4 years ago
READ CAREFULLY! There is a difference between moving and copying files.a. Create a directory named . For example, mine would be
OleMash [197]

Answer:

b

Explanation:

8 0
3 years ago
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