7 is the radius of the circle
I hope this helps you
x=0 f (0)=0^2+1=1
x=1 f (1)=1^2+1=2
x=2 f (2)=2^2+1=5
x=3 f (3)=3^2+1=10
So let's start from the beginning.
Add 2 and 4:
(2 + 4)
Multiply the sum by 3:
3(2 + 4)
Then add 5 to that product:
3(2 + 4) + 5
Then double the results:
2[3(2 + 4) + 5]
Answer:
about +–1%; between 46.5% and 47.5%
Step-by-step explanation:
The initial term of this geometric series is 4, and the common ratio is -1/2. The sum is given by

The sum is
approximately 2.66.