HELP ASAP! IF you can help me i will medal you for the right answer!!!

Find the 7th partial sum of summation of 6 open parentheses 3 close parentheses to the I minus 1 power from 1 to infinity

2,184

6,558

27,993

167,961

Question

HELP ASAP! IF you can help me i will medal you for the right answer!!! 

Find the 7th partial sum of summation of 6 open parentheses 3 close parentheses to the I minus 1 power from 1 to infinity

2,184

6,558

27,993

167,961

anonymous · Answer

$$\sum_{i=1}^{\infty}6(3)^i-1$$

anonymous · Answer

find the 7th partial sum of ^ is the question!

anonymous · Answer

this is my last question i need help!!!

imer · Answer

Are you sure the summation formula you wrote is correct?

anonymous · Answer

the -1 is small and right next to the small i..

imer · Answer

The answer should be"6,558" because its the 7th $$\sum_{i=1}^{7}6(3)^{x-1}$$

anonymous · Answer

Thank you!! (: That was right!