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d1i1m1o1n [39]
3 years ago
7

Find the common ratio of the geometric sequence 18,-90,450,...

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
7 0

Answer:

-5

Step-by-step explanation:

The common ratio is what you have to multiply one term by to get the next term.

so:

18 \times r  = -90\\-90 \times r = 450

where r is the common ratio

We can solve these equations:

-90 / 18 = -5

450/-90 = -5

therefore the common ratio is -5

svetlana [45]3 years ago
3 0

Answer:

try looking it up on socratic

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Sphinxa [80]
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Check solution. 

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This is correct.

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SpyIntel [72]

Answer:

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Answer:

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Step-by-step explanation:

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From the general term of a geometric series,

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Answer:

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