payshencec21
payshencec21 payshencec21
  • 25-10-2018
  • Mathematics
contestada

what is the solution of |3x+9|≤15

answer choices v

what is the solution of 3x915 answer choices v class=
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Respuesta :

limabeann limabeann
  • 25-10-2018

Answer:

-8<x<2


Step-by-step explanation:


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remotecontrolbrain
remotecontrolbrain remotecontrolbrain
  • 25-10-2018

[tex]|3x+9|\leq 15\\3x+9\leq 15 \,\,\mbox{for}\,\,x\geq -3\\\rightarrow x\leq2\\-(3x+9) \leq 15 \,\,\mbox{for}\,\,x< -3\\\rightarrow x \geq -8\\\mbox{combined:}\\-8\leq x \leq 2[/tex]

correct answer is choice #3: -8<=x<=2

Answer Link

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