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2 years ago

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Computers and Technology

1 answer:

Nadya [2.5K]2 years ago

5 0

Answer:

There are a few differences between classical and traditional technology. Traditional technology is something that has always been done and classical technology is something that was once done.

Explanation:

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Which statements describe the use of styles in Word? Check all that apply.

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can be used to make word docments look the same

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3 years ago

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Assume that grade is a variable whose value is a letter grade-- any one of the following letters: 'A', 'B', 'C', 'D', 'E', 'F',

d1i1m1o1n [39]

Answer:

switch (grade) {

case 'A':

acount++;

break;

case 'B':

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case 'D':

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case 'E':

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3 years ago

In this unit, you learned how to manipulate numbers and strings, acquire input from the user, perform data manipulations for var

e-lub [12.9K]

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Sometimes you will tell the CPU to use the main memory, secondary memory, network, or the input/output devices. Digital Computing: It's All ...

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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.

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

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

HELP LOTS OF POINTS! I WILL GIVE YOU 100+ POINTS IF ANSWERED CORRECTLY!!!

Delicious77 [7]

Answer:

E) all of the above

Explanation:

Your device can track your location, which means that it will tell where you've been. When you post on social media or just online, you are sharing what you're thinking. Your friends and family can easily be traced back to you, so they know who your friends and family are, and we leave evidence of what we've done because whatever you click gets tracked. hope this helps :)

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3 years ago