Respuesta :

fazaima328

Answer:

x= 6

Step-by-step explanation:

You need to set up a proportion

12/8 = 9/x

Then you do Cross Product Property

8*9=72

12*x=12x

12x=72

divide 72 by 12

72/12=6

x=6

Answer:

A

Step-by-step explanation:

The ratios of corresponding sides are equal, that is

[tex]\frac{XZ}{DF}[/tex] = [tex]\frac{XY}{DE}[/tex], that is

[tex]\frac{12}{8}[/tex] = [tex]\frac{9}{x}[/tex] ( cross- multiply )

12x = 72 ( divide both sides by 12 )

x = 6

x = DE = 6 → A

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