georgered890 georgered890
  • 16-12-2020
  • Mathematics
contestada

need this, please. real fast

need this please real fast class=

Respuesta :

kiwibird0316 kiwibird0316
  • 16-12-2020

Answer:

9

Step-by-step explanation:

(5x-4)+(6x-5)=90 degrees, because complementary angles add up to 90 degrees. So, 11x-9=90, 11x=99, then x=9.

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