Answers

  • Brainly User
2016-07-03T18:34:42+08:00
The geometric sequence:

1 000, 2000, 4000, 8000, ... a₁₀

a₁ = 1 000
r = 2   
n = 10
a₁₀ = ?

Find a₁₀ (bacteria after 10 hours)

a₁₀ =  a_{1}  (r)^{n-1}

a₁₀ = 1 000 (2)¹⁰⁻¹

a₁₀ = 1 000 (2)⁹

a₁₀ = 1 000 (512)

a₁₀ = 512 000

ANSWER:  512,000
1 5 1