ibbyibraheem ibbyibraheem
  • 26-03-2021
  • Mathematics
contestada

"Solve for x (where log_x() denotes the logarithm on base x): log_x(25) = 2.50, x = __"

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 26-03-2021

9514 1404 393

Answer:

  x = 625^(1/5) ≈ 3.62390

Step-by-step explanation:

Using the change of base formula, we have ...

  [tex]\log_x(25)=2.5\\\\\dfrac{\log(25)}{\log(x)}=2.5\\\\\log(x)=\dfrac{\log(25)}{2.5}=0.4\log(25)=\log(25^{0.4})\\\\x=25^{0.4}=\sqrt[5]{25^2}=\boxed{\sqrt[5]{625}\approx 3.62390}[/tex]

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