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7 May, 14:09

Consider the following sequence of numbers 3, - 9, 27, - 81, ...

Common Ratio Of The Sequence is?

A. 1/3

B. - 1/3

C. - 3

D. 3

The Sum Of The First Five Terms Of The Sequence Is?

A. 183

B. - 303

C. - 60

D. 363

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Answers (2)
  1. 7 May, 14:27
    0
    Common ratio = - 9/3 = - 3

    Sum of 5 terms = 3 - 9 + 27 - 81 + 243

    = 183
  2. 7 May, 14:31
    0
    C and c because times by negative three each time then c on the second one because all you do is add the numbers up
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