Find the value of x in the triangle shown below

Mathematics

1 answer:

Rudiy273 years ago

6 0

Answer:

Step-by-step explanation:

x= $\sqrt{12^{2} +16^{2} }$

x=20

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Svetllana [295]

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All questions to be solved using linear combination.

monitta

1)
I:x-y=-7
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add both equations together to eliminate y:
x-y+(x+y)=-7+7
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add I+(-1*II) together to eliminate y:
3x+y+(-2x-y)=4+(-5)
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3*-1+y=4
y=7

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I: 2e-3f=-9
II: e+3f=18

add both equations together to eliminate f:
2e-3f+(e+3f)=-9+18
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insert e=3 into I:
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4)
I: 3d-e=7
II: d+e=5

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In order to calculate that, we need to divide it by 1/5 as follows:
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Let me show you a website that has saved my behind so many times in high-school...

https://www.cymath.com/

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