Q:

PLEASE HELP EASY ALGEBRA What is the sum of the geometric sequence 1, 3, 9, … if there are 10 terms? A: 29,524 B: 55,987 C: 87,381 D: 88,573

Accepted Solution

A:
Each number in the 10-digit sequence is multiplied by 3

1, 3, 9, 27, 81, 243, 729, 2187, 6561, 19683

1*3= 3
3*3=9
9*3=27
27*3=81
81*3=243
243*3=729
729*3=2187
2187*3=6561
6561*3=19683

Total of numbers= 29524

ANSWER: A) 29,524

Hope this helps! :)