Answer:
(2,8), (3,5),
Step-by-step explanation:
Answer:
5x - 5
Step-by-step explanation:
To find the missing side, add the two sides together and subtract them from the perimeter.
side 1 + side 2
3x + 2 + 8x + 7
combine like terms
11x + 9
Subtract from the perimeter
16x + 4 - (11x + 9)
rewrite as an addition problem, so you need to change the signs inside the parentheses.
16x + 4 + (-11x -9)
Now combine like terms
5x - 5
Answer:
they should be similar since the angles are congruent. However we do not have the other lengths to determine if they are in proportion.
Answer:
x=-6
Step-by-step explanation:
I hope this helps, I write it on a sheet because I don't have pencils and notebook now ^_^

Rewrite the term 

Expand each term so we have

Use the fact that 

Use the fact that
when a is an even number

Simplify


Let me know if you need any clarifications, thanks!