madisonryan01 madisonryan01
  • 28-08-2019
  • Mathematics
contestada

a. 21
b. 42
c .24
d. 18
e. 38

a 21 b 42 c 24 d 18 e 38 class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 06-09-2019

Answer:

  a. 21

Step-by-step explanation:

Angle TYZ is half the measure of arc YZ, so we have ...

  2(3x -17) +(12x +16) = 360

  18x - 18 = 360  . . . . collect terms

  x - 1 = 20 . . . . . . . . .divide by 18

  x = 21

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