umana0914 umana0914

04-05-2020
Mathematics

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Which is the value of this expression when a = 5 and k = negative 2?
1/75 Fraction
9/25 Fraction
25/9 Fraction
75

Which is the value of this expression when a 5 and k negative 2 175 Fraction 925 Fraction 259 Fraction 75 class=

Respuesta :

ghanami ghanami

05-05-2020

Answer:

25/9

Step-by-step explanation:

hello :

this expression equivalent to : (3/a)^5

because ;3²a^(-2)/3a^(-1)= (3²/3)×(a^(-2)/a^(-1)) = 3a^(-2+1) = 3a^(-1) = 3/a

now : a=5 and k= -2 so : (3/5)^(-2) = (5/3)² =25/9

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