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rockinhood

  • one year ago

+WILL GIVE MEDAL!+

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  1. rockinhood
    • one year ago
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    http://prntscr.com/8mrqe2

  2. rockinhood
    • one year ago
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    @sweetburger ??

  3. rockinhood
    • one year ago
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    @Nnesha plz

  4. Nnesha
    • one year ago
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    days represent by n variable so just plugin the numbers to find the correct answer

  5. Nnesha
    • one year ago
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    |dw:1443788222785:dw|

  6. Nnesha
    • one year ago
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    let's try 4th one|dw:1443788458435:dw| \[\huge\rm a_n=a_{n-1}+2(n+1)\] substitute n for 4 \[\large\rm a_\color{Red}{4}=a_{\color{ReD}{4}-1}+2(\color{reD}{4}+1)\] 4-1 = 3 so a_{4-1} =a_3 now substitute a_3 for 10 bec `after 3 days , there are 10 cells` is same as a_3 =10 \[a_4=10+2(5) ~~~~~~~~~~~~~~~~~~~~~~a_4=20\]but we should get 16 so D is wrong now try other 3

  7. rockinhood
    • one year ago
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    so a. the equation is a4=a4−1+2(4) ? Or a4 = 10 - 1 + 8 or 17?

  8. rockinhood
    • one year ago
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    @Nnesha

  9. Nnesha
    • one year ago
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    it's \[\huge\rm a_{4-1}= a_3\]

  10. rockinhood
    • one year ago
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    Oh so a is 16 then??

  11. Nnesha
    • one year ago
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    {4-1} is base which is equal to a_3

  12. Nnesha
    • one year ago
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    \(\color{blue}{\text{Originally Posted by}}\) @rockinhood so a. the equation is a4=a4−1+2(4) ? Or a4 = 10 - 1 + 8 or 17? \(\color{blue}{\text{End of Quote}}\) a_{4-1}=a_3 so u wil get a_3 +8

  13. Nnesha
    • one year ago
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    now replace a_3 with its value

  14. rockinhood
    • one year ago
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    10_3 + 8

  15. Nnesha
    • one year ago
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    a_3 means 3rd term

  16. Nnesha
    • one year ago
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    it's not 10 with base 3

  17. Nnesha
    • one year ago
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    a_1= first term a_2 = 2nd term a_3= 3rd term so it's 10+8|dw:1443797343672:dw|

  18. rockinhood
    • one year ago
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    Oh ok

  19. Nnesha
    • one year ago
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    10+8 equal =18 so a isn't correct bec when we substitute 4 for n we should get 16

  20. rockinhood
    • one year ago
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    So now I have to check b? a_n = a_n - 1 + n^2

  21. Nnesha
    • one year ago
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    yep btw u can use 3rd and 2nd term :=) doesn't maatter

  22. Nnesha
    • one year ago
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    how did you get 9?

  23. rockinhood
    • one year ago
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    That was a mistake that I jsut realized lol

  24. rockinhood
    • one year ago
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    I just did C a_n = a_n - 1 + (n + 2) 10 + 6 Is it c?

  25. Nnesha
    • one year ago
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    yes right 10+6 =16!

  26. rockinhood
    • one year ago
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    a_n - 1 + (n + 2) a_3 + (4 + 2) 10 + 6

  27. rockinhood
    • one year ago
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    Yes! Thanks for the help, I'll be sure to let you know if I need help with any others :D

  28. Nnesha
    • one year ago
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    alright good work!

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