Answer:
D.
Step-by-step explanation:
You want to find the points on each side. Because it is greater than or equal to -4, there will be a solid circle on the -4. Since D is the only answer with a solid circle on -4, that should be the answer.
We can solve this equation by completing the square. Notice that

and

. Therefore, we can turn

into

. y, in this equation, only has one real solution: 4. So your answer would be (B).
Answer: A
Step-by-step explanation:
3000 impressions
A CTR 2% conversion 25%
2% of 3000 = 2/100 . 3000 = 60 clicks
25% of 60 = 25/100 . 60 = 15
B CTR 4% conversion 10%
4% of 3000 = 4/100 . 3000 = 120 clicks
10% of 60 = 10/100 . 120 = 12
This way, A converted more than B
Answer:
B) Aluminum and steel are good conductors of electricity.
Step-by-step explanation: