Given that we assume that all the bases of the triangles are parallel.
We can use AAA or Angle-Angle-Angle to prove that these triangles are similar.
Each parallel line creates the same angle when intersecting with the same side.
For example:
The bases of each triangle cross the left side of all the triangle.
Each angle made by the intersecting of the the parallel base and the side are the same.
Thus, each corresponding angle of all the triangles are congruent.
If these angles are congruent, then we have similar triangles.
Answer is n^2+2
I attached a picture of my working out
You have to fill in 3 for x so it woul look like 3x3-3 and that would be 6.
Answer:
The rate of change for the given function is 6.
Step-by-step explanation:
Given function is:

The interval on which we have to find the rate of change is:
1≤x≤2
Here
a = 1
b = 2
We have to find the values of function on both points
Putting 1 in place of input (x)

Putting x = 2

The rate of change is calculated by using the following formula

Hence,
The rate of change for the given function is 6.
X=5
y=10
I think i already give you answer.