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4 votes
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????????????????????????-example-1
asked
User Somatik
by
7.7k points

2 Answers

1 vote
Use the pythagorean theorem:
a^2 + b^2 = c^2

1. x + 7.8² = √428.49 (20.7²)

2. x + 60.84 = √428.49
3. - 60.84 -60.84
4. x = √367.65
5. x = 19.174
answered
User Anshu Chimala
by
8.0k points
4 votes

Answer:

C. 19.2

Explanation:

answered
User Mercutio
by
8.7k points

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