Math Help!!!

posted by help asap

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(((**********

  1. Steve

    #4: try again

    the others look good.

  2. help asap

    is 4. b

  3. Steve

    That's better.

  4. help asap

    thank you so much steve your the best! i got 100!

  5. Salted Caramel

    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

  6. Finney

    The second and fifth term of a geometric progressions are 1 and 1/8. Find the common ratio.

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