Q2 goes from 90-180 degrees from the positive x-axis.
So if the line bisects Q2, theta=(90+180)/2=135 degrees.
Sin(135)=+sin(180-135)=+sin(45)=sqrt(2)/2=0.70710678 approx.
Answer:

Step-by-step explanation:
- 1/2 = 2/4
- Plug 2/4 in: -3/4x + 2/4 = 3/4
- Subtract 2/4 from each side, so it now looks like this: -3/4x = 1/4
- Divide each side by -3/4, so it cancels out the -3/4 next to x. It should now look like this: x = -1/3
I hope this helps!
The answers D, since no x values repeat
Um
81^5=3x
3,486,784,401=3x
x=1,162,261,467