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Law Incorporation [45]
2 years ago
15

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

Mathematics
1 answer:
Lena [83]2 years ago
4 0

Answer: 1.25

Step-by-step explanation:

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

Substituting in n=4,

a_{4}=10(0.5)^{4-1}=\boxed{1.25}

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