Answer:
The Rouché-Capelli Theorem. This theorem establishes a connection between how a linear system behaves and the ranks of its coefficient matrix (A) and its counterpart the augmented matrix.
![rank(A)=rank\left ( \left [ A|B \right ] \right )\:and\:n=rank(A)](https://tex.z-dn.net/?f=rank%28A%29%3Drank%5Cleft%20%28%20%5Cleft%20%5B%20A%7CB%20%5Cright%20%5D%20%5Cright%20%29%5C%3Aand%5C%3An%3Drank%28A%29)
Then satisfying this theorem the system is consistent and has one single solution.
Explanation:
1) To answer that, you should have to know The Rouché-Capelli Theorem. This theorem establishes a connection between how a linear system behaves and the ranks of its coefficient matrix (A) and its counterpart the augmented matrix.
![rank(A)=rank\left ( \left [ A|B \right ] \right )\:and\:n=rank(A)](https://tex.z-dn.net/?f=rank%28A%29%3Drank%5Cleft%20%28%20%5Cleft%20%5B%20A%7CB%20%5Cright%20%5D%20%5Cright%20%29%5C%3Aand%5C%3An%3Drank%28A%29)

Then the system is consistent and has a unique solution.
<em>E.g.</em>

2) Writing it as Linear system


3) The Rank (A) is 3 found through Gauss elimination


4) The rank of (A|B) is also equal to 3, found through Gauss elimination:
So this linear system is consistent and has a unique solution.
The process for doing business online is referred to as e-commerce.
Answer: "Contribute and Create"
Explanation: While, yes, technology and digital media does tend to isolate us from the real world, it is a great tool for contributing to society!
Answer:
The first (The security administrator makes sure to shred and properly dispose of any printed confidential information) and third (The security administrator uses password-protected files and folders on his work computer.) ones are correct.
True or False
1. Phishing is the act of sending multiple emails to multiple users in hope of having
2. Spoofing is the act of obtaining unauthorized access to data from a computer
network.
3. Extortion is the act of using the internet to threaten or damage someone's
reputation to extort money or anything else of value.
4. In late 2014, LimeWire was raided for the second time due to years of pirating
movies, music, games, books and other software.
5. Electronic harassment is also referred to as cyberbullying.
6. Non-delivery of service is the act of devising a scheme wherein a culprit posts an
item or service for sale over the internet, and once the transactions have been done, does not
give the item or service.
7. Encryption is the process of converting raw to data code.
8. In piracy, trackers are used to identify IP addresses currently sharing a pirated
file.
9. Wager Gambling is the act of betting on any sports event over the internet.
10. Most email services today have spam or bulk folder that automatically puts
these suspicious emails to that folder.