pineelecomavilliej pineelecomavilliej
  • 21-11-2016
  • Mathematics
contestada

Find the value of y in the sequence 2, 8, 3y +5,...
1. If the sequence was arithmetic
2. If the sequence was geometric

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antonsandiego
antonsandiego antonsandiego
  • 22-11-2016
1. If the sequence is arithmetic to find the needed value we have to know the common difference which is 6.
Then we have
 the [tex]3y+ 5 = 14 y = 3[/tex]term = 14
2. If the sequence was geometric we had to know the common ratio = 8/2 = 4
So the answer is :
[tex]3y + 5 = 32 3y = 27 y = 9[/tex]
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