Question

10 power 2 Y is equal to 25 then 10 power minus y equal to​

Answer 1

Answer: $10^{-y} = \frac{1}{5}$

Step-by-step explanation:

Given

$10^{2y} = 25\\\\\frac{1}{10^{2y}} = \frac{1}{5^{2}}\\\\\\\ 10^{-2y} = 5^{-2}$

Upon applying square roots in both sides, we get

$10^{-y} = 5^{-1} = \frac{1}{5}$

Therefore, $10^{-y} = \frac{1}{5}$

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