Answer:
Step-by-step explanation:
3) g>1
The correct option is c. The direction of the arrow points towards all numbers greater than 1 and 1 is not inclusive. This is indicated by the unshaded circle on 1.
4) z < 12.5
The correct option is c
d. The direction of the arrow points towards all numbers lesser than 12.5 and 12.5 is not inclusive. This is indicated by the unshaded circle on 12.5.
5) 1/5 > d + 4/5
Multiplying both sides of the inequality by 5, it becomes
1/5 × 5 > d×5 + 4/5 × 5
1 > 5d + 4
1 - 4 > 5d
- 3 > 5d
-3/5 > d
We would reverse the inequality symbol to make d be on the left hand side. It becomes
d < - 3/5
The correct option is c
