Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

britbrat4290

  • 2 years ago

Solve the system by the substitution method. xy = 12 x2 + y2 = 40

  • This Question is Closed
  1. live10000000
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    Why can't you do your own work

  2. britbrat4290
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    y dont u pop off

  3. live10000000
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    no thanks

  4. britbrat4290
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yea get off my question if u just wanna start trouble toodels

  5. ilfy214
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Thats hilarious sorry! :) But anyways you can use either equation: \[xy = 12 \]\[x= \frac{ 12 }{ y }\] OR \[x^2 + y^2 = 40 \]\[x + y = \sqrt{40}\]\[x = \sqrt{40} - y\] **The y and the x can be switched....

  6. ilfy214
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    All you need to do is plug in.

  7. britbrat4290
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    haha i know .. ok then y does it give me 4 quandrants to pick from ?

  8. britbrat4290
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    example {( 2, 6), ( 6, 2), ( 2, -6), ( 6, -2)}

  9. britbrat4290
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @ilfy214

  10. ilfy214
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    From what I solved I got these solutions. 6, 2, -2

  11. britbrat4290
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    im just confused on plugging them in ..

  12. ilfy214
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Doesn't it depend on how you solved your equation? Also, when I plugged in -2 and 6 for the first problem, I got -12 instead of 12.

  13. britbrat4290
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    im going w/ b

  14. ilfy214
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I was thinking for along the lines of C?

  15. britbrat4290
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i just dont understand how i allways mess that up

  16. ilfy214
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Because in B, if you try using ( 2, -6) and ( -2, 6) you already have a problem for the equation below:\[xy = 12\]\[(2)(-6) = -12\]\[(-2)(6)= -12\]

  17. ilfy214
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Its okay! Just choose the options that give you BOTH positive answers

  18. britbrat4290
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    thank u i appreciate it !! :)

  19. ilfy214
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You're welcome! :D

  20. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.