Math Help!!!

determine whether each sequence is arithmetic or geometric. find the next three terms.
1. 14,19,24,29....
geometric, 34,39,44
arithmetic,32,36,41
arithmetic 34,39,44****
the sequence is nether geometric nor arithmetic
2. -4,8,-16,32....
arithmetic. 64,128,256
geometric -64,128,-256****
geometric -48,64,-80
the sequence is nether geometric not arithmetic
3. 81,27,9,3,....
arithmetic 0,-3,-6
geometric 0,-3,-6
geometric 1,1/3,1/9***
the sequence is nether geometric nor arithmetic.
4. what are the first four terms of an arithmetic sequence if the commone difference is 1.5 and the first term is 15?
15,30,45,60
15,16.5,18,19.5
15,22.5,33.75,50.625
none of the above*******
5.what are the first four terms of a geometric sequence if the common ratio is 10 and the first term is 4.5?
4.5,.45, .045,.0045
4.5,9.0,13.5,18.0
4.5,14.5,24.5,34.5
none of the above(((**********


asked by help asap
  1. #4: try again

    the others look good.

    posted by Steve
  2. is 4. b

    posted by help asap
  3. That's better.

    posted by Steve
  4. thank you so much steve your the best! i got 100!

    posted by help asap
  5. 1.C-arithmetic, 34,39,44
    2. B-geometric, -65,128,-256
    3. C-geometric, 1, 1/3,1/9
    4. B-15,16.5,18,19.5
    5.D-none of the above

    posted by Salted Caramel
  6. The second and fifth term of a geometric progressions are 1 and 1/8. Find the common ratio.

    posted by Finney

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