5 to the power of negative 2 can be written as 5-2. When you have a negative exponent, it means you take the reciprocal of the base raised to the opposite positive exponent. So, 5-2 is the same as 1 divided by 52.
Calculating 52 gives us 25. Therefore:
5-2 = 1 / 52 = 1 / 25
The final result is:
5-2 = 0.04