A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

? A circle is described by the equation . What are the cordinates for the center of the circle and the length of the radius?

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    (-12,-32), 23units (-12,-32), 49units (12,32), 49units (12,32), 23units

  2. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Where is the equation?

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

    (x−12)2+(y−32)2=49.

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

    thats the equation @mathstudent55

  5. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    The equation of a circle with center at (h, k) nad radius r is \(\large (x - h)^2 + (y - k)^2 = r^2\) Compare the equation you were given with the form above. What are your values of h, k, and r?

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

    12, 32, and 49? @mathstudent55

  7. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    12 and 32 are correct for h and k, respectively, so the center is (12, 32). Be careful with the radius. The right side has to be written as r^2. Then r is the radius. Your right side is 49. How do you write 49 as the square of something?

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

    7

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

    h= .25 k=2.25 r= .2?

  10. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Correct. \((x−12)^2+(y−32)^2=7^2\) Center: (12, 32) Radius: 7

  11. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I have a question for you. In your choices, you have radius only of 49 and 23. Did your equation have 49 or 49^2 on the right side?

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

    49

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

    thankyou so much though, i got the right answer :D @mathstudent55

  14. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Great.

  15. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You're welcome.

  16. 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.