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anonymous

  • 5 years ago

Find a polynomial for the perimeter and for the area. There is a box with d+2 on top and on the right side there is a d. Need the perimeter, and the area.

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  1. anonymous
    • 5 years ago
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    so lets say a,b,c are the sides than a=b=d+2 and c=d+2?

  2. anonymous
    • 5 years ago
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    i wrote d+2 twice :)

  3. anonymous
    • 5 years ago
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    the box has area a*b*c

  4. anonymous
    • 5 years ago
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    and perimeter: 2ab+2ac+2bc

  5. anonymous
    • 5 years ago
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    I honestly don't know how to do it this is what the question was.

  6. anonymous
    • 5 years ago
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    thank you

  7. anonymous
    • 5 years ago
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    hey can I ask you something?

  8. anonymous
    • 5 years ago
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    you have to put d+2 instead of a,b and d instead of c

  9. anonymous
    • 5 years ago
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    so area will be (d+2)^2*d=d^3+4d^2+4d

  10. anonymous
    • 5 years ago
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    perimeter is 2(d+2)(d+2) +4d(d+2)

  11. anonymous
    • 5 years ago
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    if I understood the question correctly, the phrasing is pretty bad

  12. anonymous
    • 5 years ago
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    Is that after simplifing the answer?

  13. anonymous
    • 5 years ago
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    which one?

  14. anonymous
    • 5 years ago
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    both the perimeter and the area have to be simpfly not factor.

  15. anonymous
    • 5 years ago
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    2(d+2)(d+2) +4d(d+2)=2d^2+8d+8+4d^2+8d=6d^2+16d+8

  16. anonymous
    • 5 years ago
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    thank you can you do my other sample i have too?

  17. anonymous
    • 5 years ago
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    can you do it? I guess this is some kind of homework :-) I can help but I wont solve it for you.

  18. anonymous
    • 5 years ago
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    \[\sqrt[20]{(-9)^{20}}\]

  19. anonymous
    • 5 years ago
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    ok. sounds good to me.

  20. anonymous
    • 5 years ago
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    is that 30sqrt(-9)^20 ? not really visible

  21. anonymous
    • 5 years ago
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    20sqrt(-9)^20

  22. anonymous
    • 5 years ago
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    oh ok!

  23. anonymous
    • 5 years ago
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    what is ur guess?

  24. anonymous
    • 5 years ago
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    6.088

  25. anonymous
    • 5 years ago
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    how did you get that? :)

  26. anonymous
    • 5 years ago
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    i times -9 20 times and then i divied it by 20

  27. anonymous
    • 5 years ago
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    oh I see, but here this is not multiplication or division

  28. anonymous
    • 5 years ago
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    what does 2^4 mean?

  29. anonymous
    • 5 years ago
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    the 4 is the root of 2?

  30. anonymous
    • 5 years ago
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    would be 8

  31. anonymous
    • 5 years ago
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    nope, 2 to the power of 4 means that you take 2*2*2*2 (4times)=16

  32. anonymous
    • 5 years ago
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    so (-9)^20=-9*-9*-9..... (20 times)

  33. anonymous
    • 5 years ago
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    now what does \[\sqrt{?}\] mean?

  34. anonymous
    • 5 years ago
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    it is the inverse operation so lets say \[\sqrt[3]{8}\]

  35. anonymous
    • 5 years ago
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    that means the number that you multiply by itself 3 times and you will get 8

  36. anonymous
    • 5 years ago
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    when you multiply -9 20 times you don't get a good answer

  37. anonymous
    • 5 years ago
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    you get a horrid number, really big one

  38. anonymous
    • 5 years ago
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    but now we have 20sqrt(-9)^20

  39. anonymous
    • 5 years ago
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    what is the number that you multiply by itself 20 times to get (-9)^20?

  40. anonymous
    • 5 years ago
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    (-9)^20 means -9 multiplied by itself 20 times

  41. anonymous
    • 5 years ago
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    i know what i get when u multiply -9. 20 times. u get 282042115992

  42. anonymous
    • 5 years ago
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    I guess you counted that in your head :-)

  43. anonymous
    • 5 years ago
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    no used my phone.

  44. anonymous
    • 5 years ago
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    you do not need the exact value to solve the problem

  45. anonymous
    • 5 years ago
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    the answer is: what is the number that you multiply by itself 20 times to get (-9)^20? (-9)^20 means -9 multiplied by itself 20 times it is -9

  46. anonymous
    • 5 years ago
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    but that is not the good answer as the correct one is 9 can you see why?

  47. anonymous
    • 5 years ago
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    by the way, I suggest not using calculator for studying maths, unless there is some horrid calculation.

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