Step-by-step explanation:
Here 6 - 8 = 4 - 6 = 2 - 4 = 0 - 2 = - 2
Thus, the common difference between any two consecutive term is - 2.
The recursive formula is given as:

Answer: (3y) + 7+x
Step-by-step explanation:
You just flip and then their equivalent
Answer:
The solutions are (-√6,0) and (√6,0)
(-√5,-1) and (√5,-1)
Step-by-step explanation:
The equations are:

and

We make y the subject in the second equation to get;

We substitute into the first equation to get:


and 
The solutions are (-√6,0) and (√6,0)
(-√5,-1) and (√5,-1)
1. First of all, this is a isosceles triangle, meaning measurement I=58°, which makes it way easier to find T.



1. m{t}°=64 m{I}°=58
2. This one is easy because algebra is the key.

Add like-terms.



x=5
The only thing that confuses me is the y. Is it 7xy, y as a side, or what? Feel free to reply