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2 years ago

Zane performs the elementary row operation represented by R2-½R1 on matrix A.

Mathematics

2 answers:

UkoKoshka [18]2 years ago

5 0

Answer:

[2 5 0]

[-7 -11/2 12]

Step-by-step explanation:

We want to perform elementary row operation represented by R2 - ½R1 on matrix A in the figure attached.

Now, matrix A is given as;

[2 5 0]

[-6 -3 12]

Now, R1 is row 1 = [2 5 0]

R2 is row 2 = [-6 -3 12]

Thus, R2 - ½R1 = [-6 -3 12] - ½[2 5 0]

This gives;

[-6 -3 12] - [1 5/2 0] = [-7 -11/2 12]

Now,[-7 -11/2 12] will be the new row 2 since it's just an elementary row operation we did on the Matrix A.

Thus, the new matrix is now;

[2 5 0]

[-7 -11/2 12]

Anastaziya [24]2 years ago

3 0

Answer:

Its actually,

−7 −11/2 12

−6 −3 12

I just took the quiz :)

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Answer:

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Step-by-step explanation:

As, this question is incomplete, so we will create similar question and complete it. '

Let's suppose Brielle's room has following dimensions:

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3 years ago

Amelie has 385 muffins that she must package into boxes. Each box must hold 9 muffins. Amelie divides 385 by 9 and gets an answe

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Step-by-step explanation:

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2 years ago

a square with an area of 144 cm² is reduced by a factor of 1/3 how long are the new sides of the square?

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Step-by-step explanation:

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The two figures are in the file attached.

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y = 38°

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z= 10yd
v= 7.9yd
u=6.2yd

You have all the measures as a function of yd, but you do not have any information about yd, then it is not possible to find the real lenghts.

All you can tell is that the sides obey Pythagoream theorem:

u^2 + v^2 = z^2

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For example if you apply Pytagorean theorem you cand do"

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Download docx

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2 years ago

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3 years ago

Read 2 more answers

Zane performs the elementary row operation represented by R2-½R1 on matrix A.​

Zane performs the elementary row operation represented by R2-½R1 on matrix A.