yoselinsz
yoselinsz yoselinsz
  • 01-10-2020
  • Mathematics
contestada

If EF bisects CD, CG = 11x-5, GD=13x-15, and EF=12x+2, find EF.

Respuesta :

MrRoyal
MrRoyal MrRoyal
  • 09-10-2020

Answer:

[tex]EF = 62[/tex]

Step-by-step explanation:

Given

[tex]CG = 11x-5[/tex]

[tex]GD=13x-15[/tex]

[tex]EF=12x+2[/tex]

Required

Determine EF

Since EF is a bisector of CD at G, then

[tex]CG = GD[/tex]

[tex]11x- 5 = 13x - 15[/tex]

Collect Like Terms

[tex]11x - 13x = 5 - 15[/tex]

[tex]-2x = -10[/tex]

Solve for x

[tex]x = -10/-2[/tex]

[tex]x = 5[/tex]

Substitute 5 for x in [tex]EF=12x+2[/tex]

[tex]EF = 12 * 5 + 2[/tex]

[tex]EF = 60+ 2[/tex]

[tex]EF = 62[/tex]

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