Iogistics
it says log7^343
the seven is small and it says to Evaluate each expression

Question

Iogistics
it says log7^343
the seven is small and it says to Evaluate each expression

anonymous · Answer

$$
\log_7{343}
$$??

anonymous · Answer

since $343=7^3$ you should get the answer instantly

anonymous · Answer

The first thing you should do is factor the expression out.

anonymous · Answer

I don't know how to do this i just moved schools and they are ahead he told me to solve for X the example says|dw:1357269056292:dw|

anonymous · Answer

When ever you have a logarithm, you want to factor the number... do you know how to do that?

anonymous · Answer

the answer to $\log_2(32)$ is 5, because $2^5=32$

anonymous · Answer

$$\log_b(x)=y\iff b^y=x$$ so if you have 
$$\log_2(32)=y$$ it is the same as solving $$2^y=32$$ for $y$

anonymous · Answer

no, today was the first day I've been introduced to this and i understood the rest of the worksheet i just don't know how to figure out x on this part..

anonymous · Answer

since $2^5=32$ we know $\log_2(32)=5$ and since $7^2=343$ we have $\log_7(343)=3$

anonymous · Answer

sorry typo on the last line, i meant to say 
since $7^3=343$ then $\log_7(343)=3$

anonymous · Answer

oh, so find the little number that will multiply the other number to equal the larger number

anonymous · Answer

it is the exponent

anonymous · Answer

>.< sorry exponent thank you i believe i get it now