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vazorg [7]
3 years ago
12

Find the value of X express each answer as a decimal rounded to the nearest tenth.

Mathematics
1 answer:
VMariaS [17]3 years ago
3 0

Answer:

x = 15.6

Step-by-step explanation:

use the pythagorean theorem:

a² + b² = c²

a = 9

b = x

c = 18

(9)² + x² = (18)²

81 + x² = 324                    subtract 81 from both sides

x² = 243                            take the square root of both sides

x = √243

x = 15.6

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