Do I have to do all of them?
Answer:
I think B
Step-by-step explanation:
Answer:
The area of the regular pentagon is 
Step-by-step explanation:
we know that
The area of a regular polygon is equal to

where
P is the perimeter of the regular polygon
a is the apothem
Find the perimeter P
----> the regular pentagon has five equal sides
---> distance from center to middle of side
substitute


-5/4
The ‘rise’ is 5 units, but it goes down so it is negative.
The ‘run’ is 4 units to the right.
Rise
———
Run
-5/4
Answer:
9s^3 + 13s
Step-by-step explanation:
Combine like terms and simplify.
(6s^3 + 3s^3) + (9s + 4s) + (10 - 10)
(9s^3) + (13s)
9s^3 + 13s