Question

Question #9d42f

Answer 1

`x=4`

Explanation:

If `log_b a = c`, then `b^c=a`.

Most of the time, `log_10` is written simply as `log`. (Similarly, `log_e` is written as `ln`.)

In this case, `x=log 10000`. We can rewrite this as `x=log_10 10000` and rearrange it to exponential form.

`10^x=10000`

Now, we can change the `10000` so it has a base of `10`.

`10^x=10^4`

`x=4`