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TNNG

  • 3 years ago

Write the sum using summation notation, assuming the suggested pattern continues. -9 - 4 + 1 + 6 + ... + 66

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  1. TNNG
    • 3 years ago
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    @whpalmer4

  2. TNNG
    • 3 years ago
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    @Reaper534

  3. Reaper534
    • 3 years ago
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    ohh thats easy it adds by 5

  4. Reaper534
    • 3 years ago
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    so 11 16 21 26 31 ect.

  5. TNNG
    • 3 years ago
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    so is it -9+5n

  6. TNNG
    • 3 years ago
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    \[\sum_{n=0}^{15} (-9+5n)\]

  7. TNNG
    • 3 years ago
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    @Reaper534

  8. Reaper534
    • 3 years ago
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    tht will be the best choice

  9. TNNG
    • 3 years ago
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    thank you can you also help me in this problem

  10. TNNG
    • 3 years ago
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    Find the sum of the first 9 terms of the sequence. Show all work for full credit. 2, -7, -16, -25, ...

  11. Reaper534
    • 3 years ago
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    2-9=-7-8=-16-... so u subtract by 9 im alo in school right now too i need to get back at that lol

  12. TNNG
    • 3 years ago
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    lol thank you so i just subtract -16-9

  13. Reaper534
    • 3 years ago
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    yeah u do u start from 2 or 25?

  14. TNNG
    • 3 years ago
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    alright so 2-9, -7-9, -16-9, 25-9 and i will have my answer

  15. Reaper534
    • 3 years ago
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    2-9=7,...

  16. Reaper534
    • 3 years ago
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    ok gtg to my paper

  17. TNNG
    • 3 years ago
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    -7-9= -16, -16-9=-25-9=-34... and so on

  18. Reaper534
    • 3 years ago
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    correct

  19. TNNG
    • 3 years ago
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    an i do this unitl i get to the ninth term

  20. Reaper534
    • 3 years ago
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    ok there u go now i relly gtg

  21. TNNG
    • 3 years ago
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    ight thanks

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