Tisha18 Tisha18

06-09-2014
Mathematics

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AB and BC share point B to form AC. If AC=7 and BC=5, then what is the length of AB?

Respuesta :

06-09-2014

A B C
The whole segment is AC,AC=7,BC=5.
AB=?
AC-BC=AB
7-5=2

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Аноним Аноним

06-09-2014

[tex]|AC|=7;\ |BC|=5\\\\|AC|=|AB|+|BC|\\\\|AB|+5=7\ \ \ \ \ |subtract\ 5\ from\ both\ sides\\\\\boxed{|AB|=2}[/tex]

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