hollie6 hollie6
  • 22-05-2017
  • Mathematics
contestada

Help please I don't understand this

Help please I dont understand this class=

Respuesta :

bcalle
bcalle bcalle
  • 22-05-2017
That is true. You only need to flip the inequality when you multiply or divide by a negative number. The 4 coefficient of the r is positive.
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