## DallasLifeBaby01 one year ago What are the next three terms in the sequences below? 1.) 2, 5, 7, 12, ___, ___, ___ 2.) 9, 11, 20, 31, ___, ___, ___ 3.) 2, 5, 10, 50, ___, ___, ___ 4.) 1, 3, 3, 9, ___, ___, ___

1. SolomonZelman

oh the patterns are: 2, 5, 7, 12, ___, ___, ___ 9, 11, 20, 31, ___, ___, ___ 2, 5, 10, 50, ___, ___, ___ 1, 3, 3, 9, ___, ___, ___ correct? (got a bit confused by the numbers in front)

2. DallasLifeBaby01

yes let me edit it

3. SolomonZelman

the last pattern is $$\Large\color{black}{ a_{n+1}=a_{n}\times a_{n-1} }$$

4. SolomonZelman

the 3rd pattern is r=5/2 (geometric sequence)

5. DallasLifeBaby01

i don't have anything to work it out on but im sitting some kids and I'm trying to go over their work

6. SolomonZelman

the 2nd pattern is Fibonacci sequence, but they start from 9 and 11

7. SolomonZelman

and the 1st sequence is also Fibonacci sequence, that starts from 2 and 5

8. SolomonZelman

(i gave you the patterns)

9. DallasLifeBaby01

okay thank you!