Respuesta :

Answer:

  (7√3)/3

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relation between sides of a right triangle and angles.

  Tan = Opposite/Adjacent

That means ...

  tan(30°) = x/7

Multiplying by 7, we have ...

  x = 7·tan(30°)

  x = (7√3)/3