Which formula can be used to describe the sequence below?
29, 9, 3, 1, 1/

Answer is  

Step-by-step explanation:

It is 29 in place of 27 . and Its a geometric series with first term 27 and common ratio

and  general formula for  given sequence is given by  

so plugging the value of a and r ,we get

   )^{n-1}" alt="\frac{1}{3}" />)^{n-1}" />

were is the equation

the radius is 2 times the diameter.

step-by-step explanation: