3 years ago

What’s the next 3 numbers after 1, -3, 9, -27

Mathematics

2 answers:

aksik [14]3 years ago

7 0

Answer:

1, -3, 9, -27, (81),-243,729,-2187

Step-by-step explanation:

81 is the answer

MaRussiya [10]3 years ago

6 0

Answer:

81, - 243, 729

Step-by-step explanation:

There is a common ratio between consecutive terms in the sequence, that is

r = - 3 ÷ 1 = 9 ÷ - 3 = - 27 ÷ 9 = - 3

Thus to obtain a term in the sequence multiply the previous term by - 3

- 27 × - 3 = 81

81 × - 3 = - 243

- 243 × - 3 = 729

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