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nexus9112 [7]
2 years ago
5

I’m stuck on this question. any help would be greatly appreciated

Mathematics
1 answer:
Mademuasel [1]2 years ago
4 0

Using the Pythagorean theorem we get:

y^2+8^2=12^2.

Simplifying the above result we get:

y^2+64=144.

Subtracting 64 from the above equation we get:

\begin{gathered} y^2+64-64=144-64, \\ y^2=80. \end{gathered}

Therefore:

y=\sqrt{80}\approx8.9.

Answer:

y=8.9.

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