Respuesta :

nktselepov

To solve this we need to use Pythagorean theorem

[tex] {x}^{2} + {14}^{2} = (9 + x) ^{2} \\ {x}^{2} + 196 = 81 + 18x + {x}^{2} \\ 18x = 115 \\ x = 6.3(8) \simeq6.4[/tex]

Answer: x≈6.4