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April 17, 2014

Homework Help: algebra

Posted by Jennifer on Thursday, March 22, 2012 at 1:45am.

can you check my answers please?
What are the first three terms of the sequence: a1 = 3 and an = 2(an1)2?

2, 8, 18

3, 18, 648

--3, 32, 50

2, 6, 12, 24
What is the 14th term in the sequence: an = 4n + 13?

-43

43

__> -69

69
What is the recursive rule for the sequence: −2.7, −8.3, −13.9, −19.5, −25.1 ?
(Points : 4)
an = an 1 + 5.6

an = an + 1 - 5.6

an = an + 1 + 5.6

--> an = an 1 - 5.6

Which describes the type of sequence in 99, 88, 66, 55, ?

both arithmetic and geometric

geometric

arithmetic

---> neither arithmetic nor geometric

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