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ZanzabumX [31]
3 years ago
7

Please help meeeeee I will mark you!. I need an answer and explanation

Mathematics
1 answer:
kari74 [83]3 years ago
5 0

Answer:

<em>12^2 + x^2 = 13^2</em>

Step-by-step explanation:

The student's error was that he didn't use the Pythagorean Theorem correctly

According to the Pythagorean Theorem, <em>a^2 + b^2 = c^2</em>, where c represents the hypotenuse

However, the student replaced <em>c</em> with <em>x</em>, which isn't the hypotenuse

The hypotenuse is 13, so <em>c</em> should be 13, not <em>x</em>

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w / h = u / HG

w = 8

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lets use  h / w  = HG / u   this is the same relationship but looks easier to me

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not too tuff... when you set the relationship so it's easiest  :)

and yes.. we cold have swapped the fractions and done it the other way and gotten the same answer.. but maybe with a bit more algebra.. and... avoid extra algebra ... that's where the mistakes can be made  :P

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