Question

Can somebody help me, please

Answer 1

uh I don't even know what this is

Answer 2

Answer: x = 500

Explanation:

Use the Pythagorean Theorem

a²+b²=c²

300² + 400² = x²

90000 + 160000 = x²

250000 = x²

√250000 = √x²

500 = x

hope i explained it :)