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mylen [45]
3 years ago
14

Is (2,-2) a solution to the following system of equations?

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
8 0

Answer:

yes?

Step-by-step explanation:

is this a true or false question

(its true)

Nana76 [90]3 years ago
8 0

Answer:

No

Step-by-step explanation:

Remark

No

If it was, the value for x should give you the same y in both cases. Try it out.

<u>First Equation</u>

y = -2x + 2

x = 2

y = -2*2 + 2 = -4 + 2 = - 2

<u>Second equation</u>

x = 2

y = 7*2 + 11

y = 14 + 11

y = 25

Conclusion

They are no where near being the same

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The resulting matrix of the row operation is given as follows:

R = \left[\begin{array}{ccc}7&4.5&-6\\-6&-3&12\end{array}\right]

<h3>How to find the resulting matrix?</h3>

We apply the row operation on the original matrix, given as follows:

A = \left[\begin{array}{ccc}4&3&0\\-6&-3&12\end{array}\right]

The operation is given by:

R_1 = R_1 - 0.5R_2

That is, applying to each element, we have that:

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Hence the resulting matrix is:

R = \left[\begin{array}{ccc}7&4.5&-6\\-6&-3&12\end{array}\right]

More can be learned about matrix operations at brainly.com/question/1821869

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