madit129 madit129
  • 23-03-2021
  • Mathematics
contestada

9 and 11 need help
Mark brainlist

9 and 11 need help Mark brainlist class=

Respuesta :

gufeliz1965
gufeliz1965 gufeliz1965
  • 23-03-2021

I will do 9 only. You can do 11.

Question 9

sin(60) = x/8

sin(60)(8) = x

4•sqrt{3} = x

x^2 + y^2 = 8^2

(4•sqrt{3})^2 + y^2 = 64

16(3) + y^2 = 64

48 + y^2 = 64

y^2 = 64 - 48

y^2 = 16

sqrt{y^2} = sqrt{16}

y = 4

Do 11 the same way.

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