Question

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

(a) -1/5
(b)1/50
(c)1/625
(d)1/5
please brifly explain​

Answer 1

→ Solution:

102y = 25

(10y)2 = 52

10y = 5

1/10y = 1/5

10-y = 1/5

Answer: (e)

Answer 2

Answer:

Step-by-step explanation:

102y = 25

(10y)2 = 52

10y = 5

1/10y = 1/5

10-y = 1/5

Answer: (e)