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Respuesta :

Answer:

15=x

Step-by-step explanation:

a^2 + b^2=c^2

=9^2 +12^2 =x^2

=81 +144=x^2

=/225 =/x^2

=15=x

mathstudent55

Answer:

x = 12

Step-by-step explanation:

Use the right triangle altitude theorem.

16/x = x/9

x^2 = 16 * 9

x^2 = 144

x = 12

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