Question

Find the 7th term of the geometric sequence -5, 15, 45, 135, 405,...

a. -3,650
b. 10,935
c. 1,215
d. -3,645

Answer 1

1,215

Explanation:

Because if you think of it it multiplies by 3x so 3x5=? 15! 15x3=? 45! 45x3=? 405! 405x=3? 1,215! 1,215x3=? 3,645! anyways, I can go on and on I hope this answer was right!