Answer:
C, 14.4
Explanation:
Using the Pythagorean theorem, you can solve for x (it's a right triangle)
8.6^2+11.5^2=c^2
206.21=c^2
√(206.21)=c
√(206.21)≈14.36 So the answer is C if you round the answer to the nearest 10th.
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