Lamyiaa Lamyiaa
  • 21-08-2018
  • Mathematics
contestada

what is -a^-2 if a=-5

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choixongdong
choixongdong choixongdong
  • 21-08-2018

-a^-2 if a=-5

= - 1/a^2

= - (1 / (-5))^2

= - 1/25

= - 0.04

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Peredhel
Peredhel Peredhel
  • 21-08-2018

Hi!

If a = -5, -a = 5

So our equation is...

[tex] 5^{-2} [/tex]

When you use a negative exponents, it tells you how many times to divide by the number.

1 ÷ 5 ÷ 5 = 0.04

The answer is 0.04

Hope this helps! :)

-Peredhel

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