3 years ago

Y is between x and z, xy = 13.8, xz =21.4. find YZ

1 answer:

4 0

$\bf \underset{{~\hspace{7em}XZ = 21.4}}{
\stackrel{XY=13.8}{X\rule[0.35em]{17em}{0.25pt}Y}\rule[0.35em]{10em}{0.25pt}Z
}
\\\\\\
XZ=XY+YZ\implies XZ-XY=YZ\implies 21.4-13.8=YZ\implies 7.6=YZ$

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