Question 1159634
Solve the equation 4^x=7.
give your answer to 3 significant figure.
:
{{{4^x = 7}}}
using natural logs
{{{ln(4^x) = ln(7)}}}
x*ln(4) = ln(7)
x = {{{ln(7)/ln(4)}}}
use your calc
x = 1.404
;
:
Check with your calc: 4^1.404 = 7.000