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3 votes
Find the 10th term of the geometric sequence 8, -24, 72...

User Prissy
by
3.6k points

2 Answers

5 votes

Answer:

a10 = -157,464

Explanation:

a1 = 8

a2 = -24

r = a2/a1 = -3

an = a1 × r^(n - 1)

a10 = a1 × (-3)^(10 - 1)

a10 = 8 × (-3)^(9)

a10 = -157,464

User Kiyana
by
3.7k points
4 votes

Answer: -157,464

Explanation:

an=a^1*r^n-1

a10=8*-3^10-1

a10=8*-3^9

a10=8*-19683

a10=-157464

User Oz Lodriguez
by
3.3k points