Write the next number in this geometric sequence -3.24, 9.72, -29.16, 87.48

Mariyah Bell 2022-10-14 Answered
Write the next number in this geometric sequence -3.24, 9.72, -29.16, 87.48
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Answers (1)

Alexandria Rubio
Answered 2022-10-15 Author has 10 answers
We can write an expression as follows for the nth term. The signs alternate between negative and positive. Each term is 3 times more that the preceding one with a different sign.
( - 3.24 ) ( - 3 ) n where n is an integer starting at 0
( - 3.24 ) ( - 3 ) 0 = - 3.24
( - 3.24 ) ( - 3 ) 1 = 9.27
( - 3.24 ) ( - 3 ) 2 = - 29.16
( - 3.24 ) ( - 3 ) 3 = 87.48
( - 3.24 ) ( - 3 ) 4 = - 262.44
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