Answer:
Option A - 
Step-by-step explanation:
Given : For the sequence 
To find : Identify the values of following?
Solution :
The nth term of the sequence is 
Substitute n=0,1,2 and 3
When n=0,



When n=1,



When n=2,



When n=3,



Therefore, The value is 
So, Option A is correct.
Answer:

Step-by-step explanation:
see the attached figure to better understand the problem
Remember that
An isosceles triangle has two equal sides and two equal interior angles
In the isosceles triangle ABC
Applying the Pythagorean Theorem
Let
b ----> the length of the tents base




simplify

C. A chord because a chord is a line segment with 2 end points
The answer is:
-2m²+4n²-mn-2m+5n
aka letter c in algebra nation