Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

mercedies Group Title

i need help:

  • one year ago
  • one year ago

  • This Question is Closed
  1. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    with...

    • one year ago
  2. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\sqrt{4x-y}=3d\]

    • one year ago
  3. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    solve for x

    • one year ago
  4. scarydoor Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    You can square both sides, to start with.

    • one year ago
  5. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    kk

    • one year ago
  6. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    oh do you just need x by itself? i thought you wanted like actual values. ok phew

    • one year ago
  7. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    lol

    • one year ago
  8. scarydoor Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    getting x by itself is getting the actual values.

    • one year ago
  9. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    no i meant like a numerical value

    • one year ago
  10. scarydoor Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    it would be a numerical value. Determined by unknown d and variable y.

    • one year ago
  11. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ok

    • one year ago
  12. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i have know idea what to do

    • one year ago
  13. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    did you square both sides?

    • one year ago
  14. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ya

    • one year ago
  15. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    what did you get

    • one year ago
  16. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    umm idk

    • one year ago
  17. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    what do you mean? well i got 4x-y=9d^2

    • one year ago
  18. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\sqrt{4x-y}=3d\]ummm

    • one year ago
  19. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i need to solve for x

    • one year ago
  20. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    well squaring both sides would get you (squareroot 4x-y) ^2 = (3d)^2

    • one year ago
  21. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    how do you get ^2

    • one year ago
  22. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    and so now you're squaring a square root. it's like (squareroot of 4)^2 square root of 4 is 2 right? so it would be 2^2 which is 4 again. so basically if you're squaring a square root, you're not really doing anything so the square root and square cancel each other out if that makes sense

    • one year ago
  23. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    oh ^2 means sqaure

    • one year ago
  24. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    oo

    • one year ago
  25. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so you get how to square both sides then?

    • one year ago
  26. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    idk this is my first time doing this or a problem like this

    • one year ago
  27. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    oh ok well have you done questions like this: x^2 = 25

    • one year ago
  28. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ya

    • one year ago
  29. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    that would be 5 ya

    • one year ago
  30. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yeah this question is pretty much the same thing

    • one year ago
  31. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    oo

    • one year ago
  32. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so in the x^2=25 you basically square rooted both sides. so square root of x^2 = square root of 25 x=5 but it in this question you have to square both sides, give it another try

    • one year ago
  33. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so you square the 3d

    • one year ago
  34. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yup and also the sqrt 4x-y

    • one year ago
  35. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so would it be 9d

    • one year ago
  36. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    9d^2 but yeah

    • one year ago
  37. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    kk then what do i do

    • one year ago
  38. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    did you also square the other side?

    • one year ago
  39. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so would it be 16x-y^2

    • one year ago
  40. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    no because remember its squareroot of 4x-y already. so squaring it gets you squareroot of 4x-y times squareroot of 4x-y which is just 4x-y

    • one year ago
  41. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so it stays the same

    • one year ago
  42. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yeah

    • one year ago
  43. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    can you solve it now? you just have to get x by itself

    • one year ago
  44. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    would the square roots still be there

    • one year ago
  45. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    no

    • one year ago
  46. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    k

    • one year ago
  47. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so it would look like 4x-y=9d

    • one year ago
  48. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ok well you should also probably ask your teacher this too cause in math it's really important to know why things happen

    • one year ago
  49. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yeah exactly

    • one year ago
  50. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    kk i dont have a teacher

    • one year ago
  51. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    oh...how does that work?

    • one year ago
  52. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    well my mom is my teacher but my mom is in the hospital

    • one year ago
  53. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ohh ok

    • one year ago
  54. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ya

    • one year ago
  55. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    how do i get x by it's self

    • one year ago
  56. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    sorry if you dont mind me asking, what grade are you in? like technically, like your age

    • one year ago
  57. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    14 in 9

    • one year ago
  58. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so in an equation whatever you do to one side, you have to do to another. so you could add y to both sides which would get you 4x by itself

    • one year ago
  59. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    sorry again, (none of my business i know) but why don't you go to school?

    • one year ago
  60. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so what i got was 4x=9dy drama and lot of fighting

    • one year ago
  61. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    that's right except that it's d^2 not just d

    • one year ago
  62. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    oh, well i'm sorry. hope it works out, whatever it is

    • one year ago
  63. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    oo k

    • one year ago
  64. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you well we are having hard times my bf just got put in jail for a year

    • one year ago
  65. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    aww :/ Imagine all the people, living life in peace... *swaying to the awesome music* sorry, only thing i could think of

    • one year ago
  66. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    It's good that you're doing math and stuff though

    • one year ago
  67. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    lol thank you hes only 15

    • one year ago
  68. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i thought you couldn't go to jail unless you're an adult? well i suppose different countries

    • one year ago
  69. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ya well i live in hawaii so there is only two jails and one prison and a whole lot of bad kids they do what they have to

    • one year ago
  70. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ohh the kids do what they have to?

    • one year ago
  71. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ya well know that i look back at what happened it is his own problem

    • one year ago
  72. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    oh. well anyways good luck. time heals

    • one year ago
  73. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ya kk so know what do i do with 4x=9d^2y

    • one year ago
  74. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    oh i thought you'd solved it. well think about, this time entire time you've been doing things to both sides. how would you get x by itself this time?

    • one year ago
  75. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    you divide 4 on both sides

    • one year ago
  76. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    because what happens on one side you do to the other

    • one year ago
  77. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yeah! exactly! :D good job

    • one year ago
  78. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you so it would be 2.25 d^2y

    • one year ago
  79. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    wait what? so i had 4x=9d^2 + y and so x= (9d^2 + y)/4

    • one year ago
  80. mercedies Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ya and that is what i did then i divided 9/4=2.25

    • one year ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.