Question

Pls answer to become Brainly

Answer 1

Answer:

Given 102y = 25 ⇒ (10y)2 = 52 ⇒ (10y) = 5 ⇒ (10y)-1 = (5)-1 ∴ 10-y = (5)-1 = 1/5

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Answer 2

Answer:

This is the answer to understand.

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