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Angelina_Jolie [31]
3 years ago
14

What is the keyboard shortcut Ctrl+Z used for?

Computers and Technology
2 answers:
Darina [25.2K]3 years ago
6 0
The Keyboard shortcut Ctrl+Z is just the Undo command.
Harlamova29_29 [7]3 years ago
5 0
The keyboard shortcut Ctrl + Z is used to u<span>ndo your last action.</span>
You might be interested in
What is the output?
olga55 [171]

Answer:

The output is 28

Explanation:

Required

Determine the output of the code segment

The first line initializes "answer" to 0

The next two lines iterate through lists [2,4] and [3,5

Each of these lists have two elements; So, the number of iterations is 2 * 2 i.e. 4.

In the first iteration

numA = 2, numB = 3, answer = 0

So:

answer = answer + numA + numB= 0 + 2 + 3 = 5

In the second iteration

numA = 2, numB = 5, answer = 5

So:

answer = answer + numA + numB= 5 + 2 + 5 = 12

In the third iteration

numA = 4, numB = 3, answer = 12

So:

answer = answer + numA + numB= 12 + 4 + 3 = 19

In the fourth iteration

numA = 4, numB = 5, answer = 19

So:

answer = answer + numA + numB= 19 + 4 + 5 = 28

Lastly, the value of "answer" is printed

<em>Hence, the output is 28</em>

7 0
3 years ago
Saas provides services to an organization that requires the standard business process infrastructure such a CRM
Rzqust [24]

Answer: True

Explanation:

 Yes, the given statement is true that the SaaS (Software as a service) provide the different types of services to the organization which basically require the infrastructure like CRM (Customer relationship management) and it is the standard business processing in the organization.

The software as a service is the fundamental technology of the business which basically include the CRM, e-mails and the various types of sale and financial management.

5 0
3 years ago
You can use the ____ command to delete an entire table and its data.?
jek_recluse [69]
You can press control and x at the same time, the delete button, or backspace
6 0
4 years ago
What port number is the well-known port used by web servers to distribute web pages to web browsers?question 3 options:?
stira [4]
This is port 80 for clear-text connections and 443 for encrypted (TLS) connections.
5 0
3 years ago
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.

8 0
3 years ago
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