How will you describe the pathway of oxygen in the breathing system
1 answer:
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<h2>Answer:</h2>
//import the Scanner class to allow for user input
import java.util.Scanner;
//Begin class definition
public class FirstAndLast{
//Begin the main method
public static void main(String []args){
//****create an object of the Scanner class.
//Call the object 'input' to receive user's input
//from the console.
Scanner input = new Scanner(System.in);
//****create a prompt to tell the user what to do.
System.out.println("Enter the string");
//****receive the user's input
//And store it in a String variable called 'str'
String str = input.next();
//****get and print the first character.
//substring(0, 1) - means get all the characters starting
//from the lower bound (index 0) up to, but not including the upper
//bound(index 1).
//That technically means the first character.
System.out.print(str.substring(0,1));
//****get and print the last character
//1. str.length() will return the number of character in the string 'str'.
//This is also the length of the string
//2. substring(str.length() - 1) - means get all the characters starting
// from index that is one less than the length of the string to the last
// index (since an upper bound is not specified).
// This technically means the last character.
System.out.print(str.substring(str.length()-1));
} // end of main method
} //end of class definition
<h2>Explanation:</h2>The code has been written in Java and it contains comments explaining important parts of the code. Kindly go through the comments.
The source code and a sample output have also been attached to this response.
To run this program, copy the code in the source code inside a Java IDE or editor and save it as FirstAndLast.java
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark">
java
</span>
Answer:
The equation of the line is y = -4·x + 16
10 points on the line include;
(0, 16), (1, 12), (2, 8), (3, 4), (4, 0), (5, -4), (6, -8), (7, 12), (8, -16), (9, -20), and (10, -24)
Explanation:
The given points through which the line passes are;
(4, 0) and (3, 4)
The slope, 'm', of the line is given as follows;
Therefore, the slope of the line is (4 - 0)/(3 - 4) = -4
In point and slope form we can get;
The equation of the line in point and slope form is therefore;
y = -4·(x - 4) = -4·x + 16
The equation of the line in slope and intercept form is
y = -4·x + 16
10 points on the line are obtained using the equation of the line and the desired x-values input into cells on MS Excel and presented here as follows;
(0, 16), (1, 12), (2, 8), (3, 4), (4, 0), (5, -4), (6, -8), (7, 12), (8, -16), (9, -20), and (10, -24)
