Answer:

Step-by-step explanation:
We know that 
Also , 
So ,

<span>X+(X+1)=31
</span>x is the first number and the second number should be x+1, since they are consecutive
Answer:
obtuse triangle
Step-by-step explanation:
In the first table, y = 4x. So y is proportional to x.
In the second table, y is not proportional to x.
In the third table, 2y = 3x. So, y is proportional to x.
Answer:
I think it's the third one
Step-by-step explanation:
I've done this before, but try the 3rd one, if not then try the second one. it's been awhile since I've done this. I'm sorry if I'm wrong