Answer:
Option A, aₙ = 4 (0.5)ⁿ⁻¹
Step-by-step explanation:
We know that the common ratio (r) is: 0.5
and first term in the sequence (a₁) is: 4
and the fact this is a geometric series, therefore the sequence would be:
=> aₙ = a₁ * (r)ⁿ⁻¹
=> aₙ = 4 (0.5)ⁿ⁻¹
Hope this helps!
