algebra
posted by Jennifer on .
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

Hello Jennifer, First off are you in K12 as well? If so I too am working on this. haha. I think #1 is correct but #2 is correct for sure if your 4n is a negative otherwise it would be just 69 not 69. the others, I am not sure of at the moment