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CHALLENGE ACTIVITY 2.9.1: Coordinate geometry. Determine the distance between points (x1, y1) and point (x2, y2), and assign the

Burka [1]

Answer:

import java.util.Scanner;

public class TestClass {

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

System.out.println("Enter value for x1, x2, y1, y2");

double x1 = input.nextDouble();

double x2 = input.nextDouble();

double y1 = input.nextDouble();

double y2 = input.nextDouble();

double xVal = Math.pow((x2-x1),2);

double yVal = Math.pow((y2-y1),2);

double distance = Math.sqrt(xVal+yVal);

System.out.println(distance);

}

}

Explanation:

The code is written in Java Programming Language.

This code simply implements the formula for the distance between two points given as

distance = $\sqrt{(x2-x1)^{2}+(y2-y1)^{2} )}$

The scanner class is used to prompt and receive all the variables that are declared.

Note that we used two special Java methods (Math.pow and Math.sqrt)

7 0

2 years ago

What are the differences between a policy, a standard, and a practice? What are the three types of security policies? Where woul

hjlf

Answer:

The difference between a policy, a standard and a practice is as follow:

Policy: It can be defined as the written instructions that describe proper behavior.
Standard: It can be defined as the detailed statement of what must be done to comply with policy.
Practice: It can be defined as the examples of actions that would comply with policy.

The three types of security policies are:

Enterprise Information Sec. Policy (EISP) : High level policy that sets the strategic direction, scope, and tone for the organization's security efforts. Use: It is used to support the mission, vision and direction of the organization and sets the strategic direction, scope and tone for all security efforts

Issue Specific Sec. Policy (ISSP) : An organizational policy that provides detailed, targeted guidance to instruct all members of the organization in the use of a resource, such as one of its processes or technologies. Use: It is used to support routine operations and instructs employees on the proper use of these technologies and processes

System Specific Sec. Policy (SysSP): Organizational policies that often function as standards or procedures to be used wen configuring or maintaining systems. SysSPs can be separated into two general groups-managerial guidance and technical specifications- but may be written as a single unified document. Use: It is used as a standard when configuring or maintaining systems.
ISSP policy would be needed to guide the use of the web, email and use of personal use of office equipment.

3 0

2 years ago

1. What should you do if your computer is shared by your entire family and you install a plugin that saves user names and passwo

Citrus2011 [14]

Explanation:

1 make sure only you know the password

2 having weak security on one browser is basically a doorway for someone to get into your network

7 0

2 years ago

Read 2 more answers

Write a python 3 function named words_in_both that takes two strings as parameters and returns a set of only those words that ap

s344n2d4d5 [400]

Answer:

def words_in_both(a, b):

a1 = set(a.lower().split())

b1 = set(b.lower().split())

return a1.intersection(b1)

common_words = words_in_both("She is a jack of all trades", 'Jack was tallest of all')

print(common_words)

Explanation:

Output:

{'all', 'of', 'jack'}

5 0

2 years ago

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The molecule 2,2-diisopropylheptane is incorrectly named. what is the correct name?

pentagon [3]

Isopropyl is: CH3 - CH - CH3
      |

Heptane is: CH3 - CH2 - CH2 - CH2 - CH2 - CH2 - CH3

Then 2,2 isopropyl heptane is:

CH3 - CH - CH3
   |
CH3 - C - CH2 - CH2 - CH2 - CH2 - CH3
   |
CH3 - CH - CH3.

There you can count that the longest carbon chain has 8 carbon atoms.
So the right name is of an octane.

I will rearrange the chain to show the 8 carbon chain in a row:

   CH3   CH3
   | |
CH3 - CH -   C - CH2 - CH2 - CH2 - CH2 - CH3
      |
   CH3 - CH - CH3

Now, you can see that the right name is 3 isopropyl - 2, 3 dimethyl octane

5 0

2 years ago