M2th913 M2th913
  • 16-01-2018
  • Mathematics
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Indentify the common ratio of the following sequence 5,-15,45

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zrh2sfo
zrh2sfo zrh2sfo
  • 16-01-2018
The Answer is 1:-3:9
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highwireact
highwireact highwireact
  • 16-01-2018
-3

We obtain the common ratio for a sequence by dividing one term by the one before it. If there’s a common ratio, all of the quotients should be the same. In this case:

-15/3 = 45/-15 = -3
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