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Yuri [45]
2 years ago
9

Help please. (right now i’m just filling in for the 20 characters it’s not relevant to the question)

Mathematics
1 answer:
suter [353]2 years ago
8 0

Answer:

9

Step-by-step explanation:

We're using the Pythagorean theorem here since it's a right triangle.

a^2 (side) + b^2 (side) = c^2 (hypotenuse)

12 = a

x = b

15 = c

12^2 + b^2 = 15^2

144 + b^2 = 225

- 144             - 144 (subtracting 144 from both sides to isolate b)

b^2 = 81

\sqrt{b^2} = \sqrt{81} (getting rid of the exponent by squaring both sides)

b = 9

x = 9

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Answer:

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rearrange to point slope form first

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