kwydra1996
kwydra1996 kwydra1996
  • 16-10-2018
  • Mathematics
contestada

evaluate this expression

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

Respuesta :

rahatmath220
rahatmath220 rahatmath220
  • 16-10-2018

Answer:

0.25

Step-by-step explanation:

we have to use the following formula here-

[tex]a^{-m}= \frac{1}{a^{m}}[/tex]

Now, here we get,

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

So, applying the formula we get

[tex]2^{-2}= \frac{1}{2^{2}}= \frac{1}{4} =0.25[/tex]


So, the answer is     0.25

Answer Link
jimrgrant1 jimrgrant1
  • 16-10-2018

[tex]2^{-2}[/tex] = [tex]\frac{1}{4}[/tex]

using the law of exponents

[tex]a^{-m}[/tex] ⇔ [tex]\frac{1}{}a^{m}[/tex]

[tex]2^{-2}[/tex] = [tex]\frac{1}{}2^{2}[/tex] = [tex]\frac{1}{4}[/tex]


Answer Link

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