payshencec21
payshencec21 payshencec21
  • 27-03-2018
  • Mathematics
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PLEASE HELP ASSSAAAPPPP

PLEASE HELP ASSSAAAPPPP class=

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musiclover10045
musiclover10045 musiclover10045
  • 27-03-2018
replace x with -2
 y = 12 * 3^-2

y = 12 * 1/9

 y = 4/3

Answer is A
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mreijepatmat
mreijepatmat mreijepatmat
  • 27-03-2018
Reminder:

a⁻ˣ = 1/aˣ

y= (12).3ˣ for x = -2 --> (12).3⁻2 ==> (12) . 1/3² = 12/9 = 4/3 (answer A)

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