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3 years ago

11

In linux, a(n) ____ is a data structure that stores all information (such as file permissions, ownership, and file type) about a

file except the actual data and filename.

Computers and Technology

1 answer:

Galina-37 [17]3 years ago

4 0

Hi,

Answer => <span>Inode

Good Lessons </span>

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What is the advantage of using a high-level language over machine language for writing computer programs?

Sveta_85 [38]

Answer:

B. is easier to write programs

Explanation:

High-level languages are most commonly used languages these days. The ease of understanding and writing programs in high-level language has made them very popular. High-level languages are near to human. English words are used to write programs in these languages. So option B is the correct answer..

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3 years ago

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Animation and transition effects will distract your audience when using a slide show presentation aid. True or false ?

lions [1.4K]

I suspect the answer they're looking for is false. However, as an experienced professional in learning and development, I can tell you that when done right these effects can enhance a presentation.

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3 years ago

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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.

<em>E.g.</em>

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

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.

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3 years ago

To enter data from the keyboard, what command do we use?

jolli1 [7]

Type the numbers or text that you want to enter, and then press ENTER or TAB. To enter data on a new line within a cell, enter a line break by pressing ALT+ENTER.

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2 years ago

List the final state of the cache, with each valid entry represented as a record of < index, tag, data >.

yanalaym [24]

There is not enough information to give correct answer. Anyway, I guess, I've seen this question before and I know the answer. I wrote it in binary. So if your task's details look like this: tag bits 31-10 2; index bits 9-4; offset bits 3:0; your answer is:

<000000, 0001, mem[1024]>
<000001, 0011, mem[3088]>
<001011, 0000, mem[176]>
<001000, 0010, mem[2176]>
<001110, 0000, mem[224]>
<001010, 0000, mem[160]>

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2 years ago