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

haleyking345

Write the standard form of the equation of each circle described. a.) center at (0,0), radius 3 Square root 3

  • 11 months ago
  • 11 months ago

  • This Question is Closed
  1. haleyking345
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1367681738477:dw|

    • 11 months ago
  2. tcarroll010
    Best Response
    You've already chosen the best response.
    Medals 1

    The equation (for circles at the center) in general is: x^2 + y^2 = r^2 All you have to do is substitute in for the "r".

    • 11 months ago
  3. haleyking345
    Best Response
    You've already chosen the best response.
    Medals 0

    3 square root of 3 squared. What would that equal?

    • 11 months ago
  4. tcarroll010
    Best Response
    You've already chosen the best response.
    Medals 1

    (3^2)(sqrt(3))^2

    • 11 months ago
  5. rman3
    Best Response
    You've already chosen the best response.
    Medals 0

    The standard form is x^2 + y^2 = r^2 3sqrt3 is equal to 27. Square the 3, which is 9. Then the sqrt of 3 which is just 3.

    • 11 months ago
  6. tcarroll010
    Best Response
    You've already chosen the best response.
    Medals 1

    So, (9)(sqrt(3))^2

    • 11 months ago
  7. rman3
    Best Response
    You've already chosen the best response.
    Medals 0

    Since the center is at 0,0 you don't need to change the x2 or y2

    • 11 months ago
  8. tcarroll010
    Best Response
    You've already chosen the best response.
    Medals 1

    And (sqrt(3))^2 = 3

    • 11 months ago
  9. tcarroll010
    Best Response
    You've already chosen the best response.
    Medals 1

    so, (3)^2 x (sqrt(3))^2 = 9 x 3 = 27

    • 11 months ago
  10. haleyking345
    Best Response
    You've already chosen the best response.
    Medals 0

    ok, that makes perfect sense. Thank you so much!!!!

    • 11 months ago
  11. tcarroll010
    Best Response
    You've already chosen the best response.
    Medals 1

    So, you have: x^2 + y^2 = (3 x sqrt(3))^2 x^2 + y^2 = 27

    • 11 months ago
  12. tcarroll010
    Best Response
    You've already chosen the best response.
    Medals 1

    Good luck in all of your studies and thx for the recognition! @haleyking345

    • 11 months 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.