Seudónimo Seudónimo
  • 11-01-2019
  • Mathematics
contestada

Find x.

A. 2√5
B. 3√5
C. 6

Find x A 25 B 35 C 6 class=

Respuesta :

Medunno13
Medunno13 Medunno13
  • 10-07-2022

Answer: C

Step-by-step explanation:

By the geometric mean theorem,

[tex]\frac{y}{5}=\frac{4}{y}\\ \\ y^{2}=20\\\\y=\sqrt{20}[/tex]

So, by the Pythagorean theorem,

[tex]4^{2}+(\sqrt{20})^{2}=x^2\\\\36=x^2\\\\x=\boxed{6}[/tex]

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