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nevsk [136]
3 years ago
5

Help me, please!!!!!!

Mathematics
2 answers:
BlackZzzverrR [31]3 years ago
6 0

Answer:   15, or d

Step-by-step explanation:

use Pythagorean Theorem. We are trying to find c^2, or the hypotenuse.

a^2+b^2=c^2

12^2+9^2=c^2

144+81=c^2

225=c^2

√225= √c^2

15=c

Your answer is D.

Lelu [443]3 years ago
5 0

12^2 + 9^2 = 225

the square root of 225 = 15

x = 15

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