Question

Which is equal to 5 exponent of -4

Answer 1

`(1)/(5^(4))` =
`(1)/(625)` = 0.0016

Explanation:

I'm assuming you mean
`5^(-4)` (which could also be written as 5^-4, for future reference).

Negative exponents actually mean you'd use the term in the denominator, taking away the negative portion. It's difficult to explain in words, and is easier to see.

`5^(-4)` =
`(1)/(5^(4))`

Notice how the -4 changes to 4, and it becomes the denominator.

`5^(4)` is also 625, so
`5^(-4)` is also 1/625, or the decimal version (0.0016).

I hope this helps!