Question

If 10^2y = 25, then 10^-y equals:

(a) -1/5, (b) 1/625, (c) 1/50, (d) 1/25, (e) 1/5
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Answer 1

$\huge\underline\mathfrak{\pink{Solution }}$

10^2y = 25

(10y)^2 = 5^2

10^y = 5

1/10^y = 1/5

10^-y = 1/5

Answer: (e)

Hope it's help you

Answer 2

Answer:

▶10^2y = 25

=> (10y)^2 = 5^2

=> 10^y = 5

=> 1/10^y = 1/5

=> 10^-y = 1/5

Answer: Option no (e)