Answer:
x=21
Step-by-step explanation:
x=9+12 x=21
Answer:
The answer would be 10. Multiply 10 by 10 you'll get 100.
Step-by-step explanation:
Unsure of what you mean by "reference number."
I do recognize that 11pi/9 is in quadrant III. I suspect that the so-called "reference number" is the acute angle between the end ray of 11pi/9 and pi, or, in more easily comparable numbers, between 9pi/9 and 11pi/9.
That difference is 2pi/9.
