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notka56 [123]
3 years ago
11

What’s the common ratio of this sequence? 3, 21, 147

Mathematics
1 answer:
andrew11 [14]3 years ago
8 0

Answer:

r = 7

Step-by-step explanation:

The common ratio r of a geometric sequence is

r = \frac{a_{2} }{a_{1} } = \frac{a_{3} }{a_{2} }, that is

r = \frac{21}{3} = \frac{147}{21} = 7

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