Posted by **Gabby** on Sunday, April 28, 2013 at 4:20pm.

Determine whether each sequence is arithmetic or geometric. Find the next three terms.

1.

14, 19, 24, 29, . . . (1 point)

geometric, 34, 39, 44

arithmetic, 32, 36, 41

arithmetic, 34, 39, 44 **

The sequence is neither geometric nor arithmetic.

2.

–4, 8, –16, 32, . . . (1 point)

arithmetic, 64, 128, 256

geometric, –64, 128, –256 **

geometric, –48, 64, –80

The sequence is neither geometric nor arithmetic.

3.

81, 27, 9, 3, . . . (1 point)

arithmetic, 0, –3, –6

geometric, 0, –3, –6

geometric, 1, one-third, one-ninth

The sequence is neither geometric nor arithmetic. **

Find the next three terms in the sequence.

4.

3, 12, 21, 30, .... (1 point)

40, 50, 60

38, 46, 54

39, 48, 57 **

36, 32, 39

5.

30, 22, 14, 6, .... (1 point)

3, –12, –21

–1, –8, –15 **

–1, –2, 3

–2, –10, –18

Ok I put 2 stars next to my answer plz tell me if I'm wrong or correct :)

- 7th Grade Math for Steve.. or Ms. Sue -
**Gabby**, Sunday, April 28, 2013 at 4:41pm
Steve.. Ms. Sue??? Reiny?? could you help.. I made sure too put my answers in...

- 7th Grade Math for Steve.. or Ms. Sue -
**Reiny**, Sunday, April 28, 2013 at 4:47pm
#3 - geometric, common ratio = 1/3

next 3 terms: 1 , 1/3 , 1/9

#5 , AS , common difference is -8

so next 3 terms

-2 , -10, -18

the others are correct

- 7th Grade Math for Steve.. or Ms. Sue -
**innocent**, Thursday, May 30, 2013 at 11:51am
1. armtc is's 34,39,44

- 7th Grade Math for Steve.. or Ms. Sue -
**Anon2**, Monday, April 27, 2015 at 5:18pm
3 is 1, 1/3, 1/9

- 7th Grade Math for Steve.. or Ms. Sue -
**Quzzy modo**, Wednesday, March 2, 2016 at 2:09pm
1 is arthic 34 39 44

2 is -64 138 -256

3 is geometric 1 1/3 1/9

4 is 39 48 57

5 is -2 -10 -18

100% correct i got them right

- 7th Grade Math for Steve.. or Ms. Sue -
**Slim Shady**, Friday, April 15, 2016 at 11:14am
1.) C

2.) B

3.) C

4.) B

5.) D

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