Step-by-step explanation:
Number 1


Number 2
The answer is [-3,2] but the graph isn't on there u cant see. it would be more better understanding if shown the graph to go with it.
Answer:
-x/8 - x
Step-by-step explanation:
Answer:
X = 20
Step-by-step explanation:
The angle are supplementary:
- Meaning that the two angles = 180°
Equation:
Solve:
- 7x + x + 20 = 180
- 8x + 20 -20 = 180 - 20
- 8x = 160
- Divide 8 from both sides:
- <u>x = 20</u>