mermaid2018
mermaid2018 mermaid2018
  • 23-05-2016
  • Mathematics
contestada

I really need help, thanks.

I really need help thanks class=

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caylus
caylus caylus
  • 23-05-2016
Hello,
I suppose the function is y=3√(6x+42)

==>6x+42>=0 (it must be a square root of a positive)
==>6x>=-42
==>x>=-42/6
==>x>=-7

ANSWER D

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