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2 years ago

-13=m-7 please help!

Mathematics

2 answers:

tino4ka555 [31]2 years ago

4 0

Answer:

m= -20

Step-by-step explanation:

-20--7=-13

hope this helps!!!

Ratling [72]2 years ago

3 0

Answer:

Step-by-step explanation:

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3 years ago

Can someone please help with this math question:)

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Solution:

The rationalisation factor for $\frac{1}{ a - \sqrt{b} }$ is $a + \sqrt{b}$

So, let us apply it here.

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Therefore, multiplying and dividing by 5 + √2, we have

$= \frac{1}{5 - \sqrt{2} } \times \frac{5 + \sqrt{2} }{5 + \sqrt{2} } \\ = \frac{5 + \sqrt{2} }{(5 - \sqrt{2})(5 + \sqrt{2} ) } \\ = \frac{5 + \sqrt{2} }{ {(5)}^{2} - ( \sqrt{2})^{2} } \\ = \frac{5 + \sqrt{2} }{25 - 2} \\ = \frac{5 + \sqrt{2} }{23}$

Answer:

$\frac{5 + \sqrt{2} }{23}$

Hope you could understand.

If you have any query, feel free to ask.

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2 years ago

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2 years ago

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