Answer:

Step-by-step explanation:
Both triangles are shown are similar. Therefore, the ratio of their sides will be maintained. We can then set up the following proportion:

Step-by-step explanation:
4x - 2y = 8
y = -2
4x -2(-2) = 8
4x + 4 = 8
4x = 4
x = 1
Answer:
22.3
Step-by-step explanation:
To solve this, you distribute the -y to both terms, 2 and 4y.
It will look something like this: (2*-y)+(4y*-y)
When you simplify, look for any like terms that can be combined, and if none, then leave it as it is.
Your final answer will be: -2y-4y^2
Answer:
72
Step-by-step explanation: