Answer:
[tex]x \: \: \: is \: approx \: \: \: - 0.8340[/tex]
Step-by-step explanation:
[tex] {3}^{x} = .4 \\ .4 = \frac{4}{10} = \frac{2}{5} [/tex]
[tex] {3}^{x} = \frac{2}{5 } \\ ln( {3}^{x} ) = ln( \frac{2}{5} ) \\ x ln(3) = ln( \frac{2}{5} ) \\ x = \frac{ ln( \frac{2}{5} ) }{ ln(3) } = - 0.8340[/tex]
