Okay I'm not too sure on this but I believe it is the third one.
I hope this helps!!
Answer:
2
Step-by-step explanation:
The x-coordinate of point (2, 9) is 2.
The distance from 0 to 2 on a number line is 2.
Answer: 2
Answer:
cosine rule - cos = 
Step-by-step explanation:
Here the ladder is acting as hypotenuse and base as adjacent.
Formula: cosθ = 
Step-by-step explanation:
For a
the solution is x>-17
For b
the solution is x<-1
For c
solve by adding 5.5 to each side
For d
solve by dividing each side by 2.5