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3 years ago

What is a type of local network that people can use to access the Internet?

2 answers:

8 0

Router: it can host the local network at home (via wifi) and through NAT (network area translation), route local traffic to internet traffic

ExtremeBDS [4]3 years ago

4 0

Id say Router is the answer based on your Question.

Router - is a device used to host a network signal which people will require the SSID(network-name) to connect to.

It is a bit confusing because the correct answer is SSID which leads me to belive Public Wi-Fi is also correct..

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What would you have to know about the pivot columns in an augmented matrix in order to know that the linear system is consistent

Scrat [10]

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.

$rank(A)=rank\left ( \left [ A|B \right ] \right )\:and\:n=rank(A)$

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.

$rank(A)=rank\left ( \left [ A|B \right ] \right )\:and\:n=rank(A)$

$rank(A)$

Then the system is consistent and has a unique solution.

$\left\{\begin{matrix}x-3y-2z=6 \\ 2x-4y-3z=8 \\ -3x+6y+8z=-5 \end{matrix}\right.$

2) Writing it as Linear system

$A=\begin{pmatrix}1 & -3 &-2 \\ 2& -4 &-3 \\ -3 &6 &8 \end{pmatrix}$ $B=\begin{pmatrix}6\\ 8\\ 5\end{pmatrix}$

$rank(A) =\left(\begin{matrix}7 & 0 & 0 \\0 & 7 & 0 \\0 & 0 & 7\end{matrix}\right)=3$

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

$(A|B)=\begin{pmatrix}1 & -3 &-2 &6 \\ 2& -4 &-3 &8 \\ -3&6 &8 &-5 \end{pmatrix}$

$rank(A|B)=\left(\begin{matrix}1 & -3 & -2 \\0 & 2 & 1 \\0 & 0 & \frac{7}{2}\end{matrix}\right)=3$

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.

8 0

3 years ago

Read the scenarios below, then use the drop-down menus to decide if you should use a database.

Romashka [77]

Answer:

A. The parent-teacher orginization keeps a log of cookies sales to raise money for the elementary school.

Explanation:

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3 years ago

Donnell backed up the information on his computer every week on a flash drive. Before copying the files to the flash drive, he a

lubasha [3.4K]

Answer:

b. Risk of a potential breach in the integrity of the data on the flash drive

Explanation:

The corrupted or unreadable file error is an error message generated if you are unable to access the external hard drive connected to the system through the USB port. This error indicates that the files on the external hard drive are no longer accessible and cannot be opened.

There are several reasons that this error message can appear:

Viruses and Malware affecting the external hard drive .
Physical damage to external hard drive or USB memory .
Improper ejection of removable drives.

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Jnhj hjibfnufnbfjbnkfv fj v

kirill [66]

Answer: baller.

Explanation:

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3 years ago

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m_a_m_a [10]

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3 years ago