# math(sequences)

0.5,1.5,4.5,13.5,...
what is the next three terms???
plz help

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3. 👁 79
1. If you double it..

1,3,9,27
which is the sequence of 3^n, n=1,2,3,4,..

so you want half of that.
What is 3x3x3x3 for the next term, then take half.

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2. I noticed this pattern

1.5-.5 = 1
4.5-1.5 = 3
13.5 - 4.5 = 9

suggesting that the differences could be powers of 3, so the next difference is 27, then 81 etc.

try that.

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posted by Reiny
3. huh?

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posted by n'kyla
4. thank you so much!

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posted by n'kyla
5. well my teacher said to find out what this sequece ment and who was the man who invented it .it goes like 1,1,2,3,5,8,13,21 ............... and i have got to find out the rest too the last number

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posted by abigail
6. plese help me

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posted by abigail
7. find the next three terms of each sequence
0.5 1.5 4.5

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posted by Jaspher

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