<span><span>Graphical form: simplifies to </span><span>Text form: f^-1*(81) simplifies to 81</span></span>
Answer:

Step-by-step explanation:
The exterior angle in a triangle is equal to the sum of the interior opposite angles in a triangle
Therefore,

Now solve for x

Now let's solve for the exterior angle

Hope this helps you.
Let me know if you have any other questions :-)
It looks about 90 degrees
Answer:
1
Step-by-step explanation:
1/2x1x2
1
It's the first one---------------------