20duncel 20duncel

05-09-2019
Mathematics

contestada

Which of the following is equal to 1/5^-2
A.1/25
B.-1/25
C.25
D.1/7

Respuesta :

sqdancefan sqdancefan

12-09-2019

Answer:

C. 25

Step-by-step explanation:

The applicable rule of exponents is ...

a^b = 1/a^-b

Matching this pattern to your expression, you see that ...

a = 5

b = 2

Then ...

1/5^-2 = 5^2 = 25

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