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Rama09 [41]
3 years ago
15

What is the sum of an infinite geometric series if the first term is 156 and the common ratio is 2⁄3?

Mathematics
1 answer:
Zanzabum3 years ago
4 0

Answer:

<h2>B. 468</h2>

Step-by-step explanation:

We have

a_1=156,\ r=\dfrac{2}{3}

If |r| < 1, then the formula of a sum of an infinite geometric sequence is:

S=\dfrac{a_1}{1-r}

Substitute:

S=\dfrac{156}{1-\frac{2}{3}}=\dfrac{156}{\frac{1}{3}}=156\cdot\dfrac{3}{1}=468

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