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mckenzieandjesus

  • one year ago

Find the common ratio of the sequence. –4, 8, –16, 32, . . . –2 –12 -1/-2 12

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  1. Nnesha
    • one year ago
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    to find common ratio divide next term by the previous one \[\large\rm r=\frac{ a_2 }{ a_1}~~or~~\frac{ a_3 }{ a_2} \]a_2 = 2nd term a_3 = 3rd term

  2. mckenzieandjesus
    • one year ago
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    wouldnt the next term be 36?

  3. mckenzieandjesus
    • one year ago
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    i'm getting -9 but thats not right..

  4. Nnesha
    • one year ago
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    ratio between two numbers in geometric you will multiply the first by common ratio to get the nexxt one other way to solve for r is first term times r = 2nd term

  5. Nnesha
    • one year ago
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    \[\huge\rm a_1 \times r = a_2\] what is first term and what is 2nd one ?

  6. Nnesha
    • one year ago
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    aww i see

  7. mckenzieandjesus
    • one year ago
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    -4 and 36

  8. Nnesha
    • one year ago
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    i see what u did there it's `common ratio` not common difference

  9. Nnesha
    • one year ago
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    now first one is -4 2nd term is what ?

  10. Nnesha
    • one year ago
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    1st term , 2nd term , 3rd, 4th term..........

  11. mckenzieandjesus
    • one year ago
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    32?

  12. Nnesha
    • one year ago
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    2 comes after 1 so what's 2nd term in this sequence `–4, 8, –16, 32, . . .`

  13. mckenzieandjesus
    • one year ago
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    8

  14. Nnesha
    • one year ago
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    right so \[\huge\rm -4r=8\] solve for r

  15. mckenzieandjesus
    • one year ago
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    2?

  16. Nnesha
    • one year ago
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    hmm positive 8 divide by `negative 4` = ?

  17. mckenzieandjesus
    • one year ago
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    -32

  18. Nnesha
    • one year ago
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    divide not multiply

  19. mckenzieandjesus
    • one year ago
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    ohh

  20. mckenzieandjesus
    • one year ago
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    -2!

  21. Nnesha
    • one year ago
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    to find common ratio we should divide 2nd term by first one or 3rd term divide by 2nd term

  22. Nnesha
    • one year ago
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    right yahoo!

  23. mckenzieandjesus
    • one year ago
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    so i gueesed the right answer then :) thanku

  24. mckenzieandjesus
    • one year ago
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    can u help me with another?

  25. mckenzieandjesus
    • one year ago
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    2, –10, 50, –250, . . .

  26. Nnesha
    • one year ago
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    will try

  27. Nnesha
    • one year ago
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    find common ratio ?

  28. mckenzieandjesus
    • one year ago
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    yes

  29. Nnesha
    • one year ago
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    alright same steps try it!

  30. Nnesha
    • one year ago
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    divide any term with the previous one you can divide 4th by 3rd one 3rd one by 2nd one 2nd one by first one

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