Answer:

Interval notation: 
Step-by-step explanation:
<u>First inequality:</u>
<u />
Therefore, this inequality restricts:

<u>Second inequality:</u>

Therefore, this inequality restricts:

Therefore, with both of these restrictions together, we have:
.
Answer is below..............
If the two angles are supplementary, they must equal 180 degrees
Check the picture below.
make sure your calculator is in Degree mode.
Answer:
Okay, gimme a sec...
Step-by-step explanation: