officialgraciela1
officialgraciela1 officialgraciela1
  • 24-05-2019
  • Mathematics
contestada

Solve the graph the inequality |4r -2| >8

Solve the graph the inequality 4r 2 gt8 class=

Respuesta :

gmany
gmany gmany
  • 27-07-2019

Answer:

b.

Step-by-step explanation:

[tex]|4r-2|>8\iff4r-2>8\ \vee\ 4r-2<-8\qquad\text{add 2 to both sides}\\\\4r>10\ \vee\ 4r<-6\qquad\text{divide both sides by 4}\\\\r>\dfrac{10}{4}\ \vee\ r<\dfrac{-6}{4}\\\\r>\dfrac{5}{2}\ \vee\ r<-\dfrac{3}{2}\\\\r>2.5\ \vee\ r<-1.5[/tex]

<, > - open circle

≤, ≥ - closed circle

<, ≤ - line to the left

>, ≥ - line to the right

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