elizabethvenegas elizabethvenegas
  • 23-11-2016
  • Mathematics
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I get pretty confused and I have a huge exam next week please help.

I get pretty confused and I have a huge exam next week please help class=
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bartdrinksmalk
bartdrinksmalk bartdrinksmalk
  • 23-11-2016
From the angle bisector theorem, we know
[tex]\frac{9}{x}=\frac{21}{14}[/tex]
[tex]\rightarrow9*14=21x[/tex]
[tex]\rightarrow 21x=126[/tex]
[tex]\rightarrow x=6[/tex]
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