Answer:
1. y+5, 2. 1.6x
Step-by-step explanation:
For the first one, we can see that in a isosceles, the sides are identical. Therefore, whatever we add together, they must also be added to the base in order to equal the total perameter:
(1 is there for a visual place holder)
(1y+5)+(1y+5)=2y+10
Add to our base:
(4y+2)+(2y+10)=6y+12
6y+12=peramiter of 6y+12
2. simply distribute and solve:
4(x-0.6x)
4x-2.4x (distribute)
1.6x (solve)
For number one, please note im not a genious in geometry, so may wanna check that logic. Other then that, hope this helps!
