Respuesta :

Answer:

  • A. x = log 9

Step-by-step explanation:

  • 10^x = 9

Log both sides:

  • log 10^x =  log 9
  • x log 10 = log 9
  • x*1 = log 9
  • x = log 9

Correct choice is A

Answer:

A x=9

it's right answer ok