Respuesta :

Answer:

9.7 rounded to 10

Step-by-step explanation:

I'm pretty sure 10 would be the answer, because since they are similar triangle you would cross multiply. So you would do [tex]\frac{23}{x} =\frac{40}{17}[/tex], you would the cross multiply 23×17 and 40×X. You would then have 40X=391, so you would divide 391÷40, so X=9.7 or 10

gmany

Answer:

x = 9.775 cm ≈ 9.8 cm

Step-by-step explanation:

If traingles are similar, then corresponding sides are in proportion:

[tex]\dfrac{x}{17}=\dfrac{23}{40}[/tex]              cross multiply

[tex]40x=(17)(23)[/tex]

[tex]40x=391[/tex]        divide both sides by 40

[tex]x=9.775\ cm[/tex]

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