12. What is the sum of the first 7 terms of a geometric sequence is 13, 52, 208, ...?
A. 60995
B. 70 993
C. 80 995
D. 90 993
A. 60995
B. 70 993
C. 80 995
D. 90 993
Add an Answer
More Questions From This User See All
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Answer:
B.
Step-by-step explanation:
7 terms: 13,52,208,832,3328,13312,53248
to get the next term, multiply the term by 4
13×4=52
52×4=208
208×4=832
832×4=3328
3328×4=13,312
13,312×4=53,248
Add all
13+52+208+832+3328+13312+53248=70993
Hope it helps :)