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2 years ago

What does a professional programmer usually do first to gain an understanding of a problem?

2 answers:

6 0

The correct answer to your question is:

Professional programmers work directly with, and interview customers to find out what the problem is.

Nadya [2.5K]2 years ago

6 0

Answer and explanation:

Before even starting encoding, a professional programmer should <em>find out what is the customer looking</em> for to have a general idea of what the programming will be like. This does not imply during the process of encoding the professional will not take the customer idea's into consideration to get to the final work result.

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You friends parents are worried about going over their budget for the month. Which expense would you suggest is NOT a need?

Lapatulllka [165]

Answer:

Anything that doesn't have to do with food (including water), shelter, or clothing.

For Example: Going to the pool is not a need, going on vacation is not a need etc. etc.

Hope this helps

Explanation:

8 0

2 years ago

Which part of project management involves determining the required materials?

Katyanochek1 [597]

Resources I think because what u have all depends on resources

5 0

3 years ago

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You have a chart that shows 100 data points and you've circled the highest value. Which of the following are you using?

cricket20 [7]

The Rudolph Rule states that simple ways you can make information stand out and guide or satisfy your audience to important details and highlight important information in your presentation

so i conclude option D is correct for above statement

hope it helps

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3 years ago

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If you want to present slides to fellow students or co-workers,which productivity software should you use to create them?

Tamiku [17]

Just use prezi.com hope that helps.

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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.

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

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

2 years ago