Respuesta :

The answer is 7.14 , hope this helps!(:

Answer:

7.14

Step-by-step explanation:

use Pythagorean theory

A squared + B squared = C squared

7 squared + X squared = 10 squared

49             + X squared = 100

                   X squared = 100 - 49

                   X squared = 51

                   X               =  7.14