Mathematics
21.07.2020 14:30
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The sequence below shows the number of households that have purchased a subscription
The sequence below shows the number of households that have purchased a subscription to a magazine each month 3,9,27,81, 243. what formula to determine the number of households
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tporter00
4,4(69 marks)
a(n) = 3*3^(n-1).
Step-by-step explanation:
The first term of this sequence is 3. The next one is 3 times 3, or 9; the next is 3 times 9, or 27; and so on. So the common ratio is 3.
The formula for the nth term is thus a(n) = 3*3^(n-1).
hunterbetterton1
4,7(63 marks)
Step-by-step explanation:
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