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Mariulka [41]
3 years ago
8

What is the common ratio of the sequence 3, 21, 147, … ?

Mathematics
2 answers:
Ivahew [28]3 years ago
5 0

Answer:

Common ratio = 7

Step-by-step explanation:

If a sequence is a geometric sequence, given in the form of a, a(r), a(r)² ..........

common ratio of the given sequence will be = \frac{ar}{a}=r

Now we apply this rule in the given sequence 3, 21, 147,.............

Then the common ratio r = \frac{\text{Second term}}{\text{First term}}

r = \frac{21}{3}

r = 7

This can be applied in 2nd and 3rd term but common ratio will remain same as 7.

Therefore, common ratio = 7 is the answer.

Sedbober [7]3 years ago
4 0
1029 the sequence increases by multiples of 7.
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