Question

Solve each equation correct to three decimals.
5^x = 120

Answer 1

\[b^x=A\iff x=\frac{\ln(A)}{\ln(b)}\] and a calculator

Answer 2

Less than 3..

Answer 3

Thank you very much for the equation, I understand the problem now.

Answer 4

ln(5^x) = ln(120)

xln5 = ln150

x = ln(120)/ln(5)

Put that in a calculator and see what it gives you, I get 1.609