guccicoochie991 guccicoochie991
  • 13-07-2020
  • Mathematics
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Need help finding the value of Z

Need help finding the value of Z class=

Respuesta :

DatGuy323
DatGuy323 DatGuy323
  • 13-07-2020

Answer:

4√7

Step-by-step explanation:

hyp1(9)/alt(x)=hyp2(7)/alt(x)

By cross multiplication, x^2 = 63

thus, alt = √63

Then, with Pythagorean theorem, (√63) ^ 2 + 7 ^ 2 = z ^ 2

Thus, 63 + 49 = z ^ 2

Thus, 112 = z ^ 2

Thus, z = √112

Thus, z = 4 √7

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