Respuesta :

ariyanahmadzadeh83

Answer:

C

Step-by-step explanation:

[tex] ({ \sqrt{74} }^{2} - {7}^{2} ) + ( { \sqrt{74} }^{2} - {7}^{2} ) = 10[/tex]

amuratov

Answer:

C

Step-by-step explanation:

[tex]1)\ (0.5X)^2 + 7^2 = 74\\[/tex]

[tex]2)\ 0.25X^2 + 49 = 74\\[/tex]

[tex]3)\ 0.25X^2= 25\\[/tex]

[tex]4)\ X^2= 100\\[/tex]

[tex]5)\ X= 10\\[/tex]