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vshiroky

  • one year ago

Need answer verification please (2y)^2+4y When y=-3 We got 24

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  1. UsukiDoll
    • one year ago
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    when y = -3 we have \[(2(-3))^2+4(-3)\] \[(-6)^2 -12 \] \[36-12 = 24\]

  2. vshiroky
    • one year ago
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    Could you check another?

  3. UsukiDoll
    • one year ago
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    sure

  4. vshiroky
    • one year ago
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    Thank you, I'm trying to help her finish hers so I can start on mine lol

  5. vshiroky
    • one year ago
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    m^3+3(x+2) when m=-2 and x=4

  6. vshiroky
    • one year ago
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    I got 10, she got 14

  7. UsukiDoll
    • one year ago
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    ok so first we need to plug in m=-2 and x = 4 \[m^3+3(x+2) \] \[(-2)^3+3(4+2)\] \[\[-8+3(6)\]\] \[-8+18 = 10 \]

  8. vshiroky
    • one year ago
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    Do you care if I keep typing more?

  9. UsukiDoll
    • one year ago
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    depends on the topic and difficulty how many more problems?

  10. vshiroky
    • one year ago
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    Same stuff and I will take whatever help you can give until you dont want to anymore because there is quite a few more

  11. UsukiDoll
    • one year ago
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    ok...

  12. vshiroky
    • one year ago
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    6k^3+3d k=-1 and d=-2 We got -12

  13. UsukiDoll
    • one year ago
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    \[6k^3+3d \] for k=-1 and d = -2 \[6(-1)^3+3(-2) \] \[6(-1)+3(-2) \rightarrow -6-6 =-12\]

  14. vshiroky
    • one year ago
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    Thanks... (4+x)^2/x-6 when x=6 We got 100

  15. UsukiDoll
    • one year ago
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    \[\frac{(4+x)^2}{x-6}\] for x = 6.. wait a minute... this is undefined... if we let x = 6 in the denominator we will have 100/0 and we can't have a 0 in the denominator.

  16. vshiroky
    • one year ago
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    oops it was supposed to be x-1 on the bottom

  17. vshiroky
    • one year ago
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    so 20 is the answer

  18. UsukiDoll
    • one year ago
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    oH! xxxxxxxxxxxxxxD

  19. UsukiDoll
    • one year ago
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    \[\frac{(4+x)^2}{x-1}\] for x = 6 100/5 = 20 yup !

  20. vshiroky
    • one year ago
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    The next one is 4+7/x-2 + 3 when x=5 We got 6 2/3

  21. UsukiDoll
    • one year ago
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    is it \[4 + \frac{7}{x}-2 +3\] or \[4 + \frac{7}{x-2} +3\] ???

  22. UsukiDoll
    • one year ago
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    I don't understand the format of the question... could you draw it out?

  23. vshiroky
    • one year ago
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    Ill just skip that one I cant figure out how to type it lol

  24. vshiroky
    • one year ago
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    I'll try

  25. vshiroky
    • one year ago
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    |dw:1436328059205:dw|

  26. UsukiDoll
    • one year ago
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    that's better.

  27. UsukiDoll
    • one year ago
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    |dw:1436328132055:dw|

  28. UsukiDoll
    • one year ago
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    |dw:1436328175777:dw|

  29. vshiroky
    • one year ago
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    WOOO

  30. vshiroky
    • one year ago
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    3(x-2)^3+x When x=4 We got 28

  31. UsukiDoll
    • one year ago
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    |dw:1436328303921:dw|

  32. vshiroky
    • one year ago
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    -5y^3+6k when y=-2 and k=1 We got 46

  33. UsukiDoll
    • one year ago
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    |dw:1436328365051:dw|

  34. vshiroky
    • one year ago
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    |dw:1436328423858:dw|

  35. vshiroky
    • one year ago
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    x=9 and m=-3

  36. vshiroky
    • one year ago
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    we got 9

  37. UsukiDoll
    • one year ago
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    :/ I got multiple answers on this one.

  38. UsukiDoll
    • one year ago
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    |dw:1436328778177:dw|

  39. nincompoop
    • one year ago
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    use PEMDAS

  40. UsukiDoll
    • one year ago
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    PEMDAS will tell me to do parenthesis.. k check then I do multiplication.. now I need division.

  41. vshiroky
    • one year ago
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    We have like 5 more if that's ok

  42. UsukiDoll
    • one year ago
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    k that's fine.. it's easy enough.

  43. vshiroky
    • one year ago
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    6(h-3)^2+5v H=6 and v=-5 We got 29

  44. UsukiDoll
    • one year ago
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    |dw:1436328918849:dw| for the previous problem

  45. vshiroky
    • one year ago
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    |dw:1436328947288:dw|

  46. UsukiDoll
    • one year ago
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    |dw:1436328955660:dw|

  47. UsukiDoll
    • one year ago
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    I'm kind of delayed a bit xD

  48. vshiroky
    • one year ago
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    Srry lol

  49. UsukiDoll
    • one year ago
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    |dw:1436329045925:dw| anything to the 0 power will result in a 1. so for 6^0 since 6 is raised to the zero power, our result is just 1 The zero exponent rule basically says that any base with an exponent of zero is equal to one. For example: x^0 = 1

  50. vshiroky
    • one year ago
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    |dw:1436329245453:dw|

  51. UsukiDoll
    • one year ago
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    |dw:1436329313843:dw|

  52. vshiroky
    • one year ago
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    |dw:1436329393789:dw|

  53. UsukiDoll
    • one year ago
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    is it x = -2 or x = 2 ?

  54. UsukiDoll
    • one year ago
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    the = sign and - sign are squished together so it's hard to tell .

  55. vshiroky
    • one year ago
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    it's -2

  56. UsukiDoll
    • one year ago
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    |dw:1436329522740:dw| the negative sign being distributed for -(-8) cancels the negative it's similar to -1(-8) = 8 a negative times a negative is a positive.

  57. UsukiDoll
    • one year ago
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    if the x was 2, then the answer would be 2 -(2)^3+2(5) -8+10=2

  58. vshiroky
    • one year ago
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    I thought -2^3 was -8

  59. UsukiDoll
    • one year ago
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    I think it had something to do with the negative in front of -x^3 and since x = -2 we had -(-2)^3

  60. UsukiDoll
    • one year ago
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    -(-8) ->8

  61. UsukiDoll
    • one year ago
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    let me recheck on a calculator

  62. vshiroky
    • one year ago
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    Gotcha

  63. vshiroky
    • one year ago
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    |dw:1436329893072:dw|

  64. UsukiDoll
    • one year ago
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    |dw:1436329942432:dw|

  65. vshiroky
    • one year ago
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    |dw:1436329944652:dw|

  66. UsukiDoll
    • one year ago
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    uh oh... is r = -2 or r = 2 ?

  67. vshiroky
    • one year ago
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    |dw:1436329996706:dw|

  68. UsukiDoll
    • one year ago
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    r is confusing.. I gotta be honest it can go both ways.

  69. vshiroky
    • one year ago
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    |dw:1436330028192:dw|

  70. vshiroky
    • one year ago
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    Sorry I just sent I think the last 2

  71. UsukiDoll
    • one year ago
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    |dw:1436330096190:dw|

  72. vshiroky
    • one year ago
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    r is -2

  73. UsukiDoll
    • one year ago
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    |dw:1436330131414:dw|

  74. vshiroky
    • one year ago
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    oops theres a couple more

  75. vshiroky
    • one year ago
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    Can I type all 5 real quick? I have to run outside quickly

  76. UsukiDoll
    • one year ago
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    |dw:1436330190606:dw||dw:1436330281564:dw| yeah sure

  77. vshiroky
    • one year ago
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    |dw:1436330310576:dw|

  78. vshiroky
    • one year ago
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    |dw:1436330398457:dw|

  79. vshiroky
    • one year ago
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    |dw:1436330429068:dw|

  80. vshiroky
    • one year ago
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    |dw:1436330461718:dw|

  81. vshiroky
    • one year ago
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    |dw:1436330497051:dw|

  82. UsukiDoll
    • one year ago
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    |dw:1436330454834:dw||dw:1436330658029:dw||dw:1436330733880:dw||dw:1436330763180:dw||dw:1436330801972:dw|

  83. UsukiDoll
    • one year ago
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    SO far, the answers are wrong. It's not good to rush at math problems because there will be mistakes.

  84. vshiroky
    • one year ago
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    She did those in her class, I just wanted to double check them but didn't have a chance yet lol

  85. UsukiDoll
    • one year ago
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    oh I see xD

  86. vshiroky
    • one year ago
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    Thank you for all your help!!

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