15-06-2022
Mathematics

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what is the value of the fourth term in a geometric sequence for which a1=10 and r =0.5

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Medunno13 Medunno13

28-06-2022

Answer: 1.25

Step-by-step explanation:

The explicit formula for the sequence is [tex]a_{n}=10(0.5)^{n-1}[/tex]

Substituting in n=4,

[tex]a_{4}=10(0.5)^{4-1}=\boxed{1.25}[/tex]

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