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3 years ago

Explain briefly why the discovery phase is a favorite with many developers

Computers and Technology

1 answer:

Mamont248 [21]3 years ago

3 0

Answer:

Discovery phase is the beginning step of a system development work. It is an important step for our professional staff, as people will need the information gathered to make informed technical advice for the construction effort and to provide an exact cost assessment.

Explanation:

Discovery regulates our organization with the customer’s requirements at the origin. The exercises and deliverables of outline Discovery are essential to the correctness of design evaluation and preparation, and we suggest that they always are completed for complicated custom requests with unknown and unsteady technical elements.

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What year did apple computer introduce the first ipod?.

Lady bird [3.3K]

Apple first released the first ipod in 2001

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1 year ago

1.) How do parks and other green spaces benefit a community?

vagabundo [1.1K]

#1 is A and #2 is B, but I don't know about #3 and #4.

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2 years ago

When implementing best practices, you will use external standalone firewalls whenever possible, but you won't go without a built

Andrews [41]

The answer is true

Technically, we have two types of firewall, a one way firewall and a two way. A one-way firewall will protect you from incoming threats. A two-way built-in or standalone firewall will add another layer of protection and thus, it is a must have tool.

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2 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.

8 0

2 years ago

Which is the best tip for optimizing a TrueView video for viewer engagement?

Ivenika [448]

Answer: (A) Look at engagement rate for targeting and focus on the methods with the highest view through rate

Explanation:

TrueView video enables to post ads in social sites however it is paid by the sponsor only if the ad is viewed fully or in some cases it is viewed only upto 30s of the total size of the video.

So in order to have a larger viewer engagement it is necessary for it to focus on the methods which would garner it highest views.

So option A is correct.

Option B and c are not correct these options would not cater to the needs of the viewer.

5 0

2 years ago