Question

please help will medal and fan. I know the answer to the question but its not written the right way.

Given the exponential equation 3x = 27, what is the logarithmic form of the equation in base 10?

i know it equals log_3(27)=x but I don't have that as an option



http://gyazo.com/a0947c902183bc6820c0192d96aca7eb

Answer 1

log_3(27) is the same as log(27)/log(3)

it doesn't matter what base the log has in that statement, as long as they both have the same base

Answer 2

so my second option? thank you

Answer 3

most modern calculators can work with variable log bases, but older calculators usually only have a log_10 option, so if you need to solve logs with an old calculator, this trick may be handy