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2 years ago

Which of the following would you use to search a table in Excel?

Computers and Technology

2 answers:

Sladkaya [172]2 years ago

6 0

Answer:

C. Find And Select

Explanation:

I hope this help you

snow_tiger [21]2 years ago

3 0

Answer:

Which function would you use if you wanted to count the number of values, but ignore the cells that have text or are empty

Which function would you use if you wanted to count the number of values, but ignore the cells that have text or are emptya COUNT

Which function would you use if you wanted to count the number of values, but ignore the cells that have text or are emptya COUNTb. COUNTA

Which function would you use if you wanted to count the number of values, but ignore the cells that have text or are emptya COUNTb. COUNTAc. COUNTBLANK

Which function would you use if you wanted to count the number of values, but ignore the cells that have text or are emptya COUNTb. COUNTAc. COUNTBLANKd. COUNTVALUES

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In 2009 to 2010, how many social network users were reported as being victims of online abuse?

Dafna1 [17]

The answer is B because being victims of online abuse is not important

7 0

2 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.

E.g.

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

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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2 years ago

Lisa and her husband would like to buy a house soon. She continuously pays bills late. How do her actions affect her and others?

stiks02 [169]

Well actually it affects her credit. Home owners would not want to sell a house to someone who doesn't pay bills on time. It shows he/she is unreliable

3 0

2 years ago

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Which of the following syntaxes displays a dialog box, causing the user to enter input text?

maks197457 [2]

Answer:

c. prompt(text[,default Input])

Explanation:

In javaScript the prompt() method displays a dialog box which allows the user input text required by the program.

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3 years ago

Conceptual note-taking is the act of writing down information in the order it is given. drawing attention to details with a mark