Your answer should be 81 for a. I got this result by multiplying 9 by 9.
Answer:
556
Step-by-step explanation:
Answer:
arithmetic sequence
Step-by-step explanation:
Arithmetic sequences include adding or subtracting. It becomes a geometric sequence when you start multiplying and dividing.
This is easier to understand with a picture...
We know that a triangle has 3 sides right?
Well, if the perimeter is 39 and there are 3 sides you would divide 39 by the 3 sides
39/3=13
Therefore, one side of the triangle would equal 13