nataliahenderso
28.06.2019 •
Mathematics
Calculate a5 for the geometric sequence in which a1=1600 and the common ratio is 3/4.
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Ответ:
a₅ = 506.25 option a
Step-by-step explanation:
Given that,
first term a₁ = 1600
common ratio (r) =
We need to find the fifth term of the geometric progression
We know that the nth term formula
aₙ = a₁rⁿ-¹
where a₁ is first term and r is the common ratio
n is the number of terms
So, n = 5
a₅ = 1600
a₅ = 1600*
a₅ = 1600*81/256
a₅ =
a₅ = 506.25 option a
That's the final answer
Ответ: