Answer: C. 
Step-by-step explanation:
1. You have the following equation of the parabola in Vertex form:
Where h is the x-coordinate of the vextex and k is the y-coordinate of the vextex.
2. You know that the vertex of this parabola is at (-2, 5), then, susbtitute this point into the equation. Then, you obtain:
3. Therefore, the answer is the option C.
Answer:
x=-1, 5/2.
Step-by-step explanation:
abs(4x-3)=7
4x-3=7, 4x-3=-7
4x=7+3=10
x=10/4=5/2
----------------
4x=-7+3
4x=-4
x=-4/4=-1
Whoah that's complicated i don't think i can help srry <span />
Answer:
I don't get what you are trying to ask?
Answer:
90 mph
Step-by-step explanation:
To get miles per hour (
), we just need to divide. 
gives us 
, meaning the train travelled 90 miles in one hour. This is the same as going 90 mph. Hope that explained things :)
