Answer:
they are not equivalent
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
radius is 1/2 of diameter
Answer:

Step-by-step explanation:
Given


Required
The explicit formula
First, calculate 
Set n=2; So:


Substitute -25 for 


Calculate the common difference (d)



So, the nth term is:


Open bracket

Collect like terms

