fleurilie
fleurilie fleurilie
  • 21-12-2015
  • Mathematics
contestada

What is the radius of the circle shown below (and how did you solve it)?
[tex] x^{2} + y^{2} -12x -6y +9=0[/tex]

Respuesta :

elishamarsh
elishamarsh elishamarsh
  • 22-12-2015
so you rearrange it as two separate equations to complete the square so 
(x-6)^2 -36 + (y-3)^2 - 9 +9 = 0
then move the integers to the other side so its in the right format for the equation of a circle and root it
so radius is 6
Answer Link

Otras preguntas

What linear function can be represented by the set of ordered pairs? {(−1, −10), (3, 2), (5, 8), (7, 14)} enter your answer in the box.
Is 9.3 greater then or less then 9.29
Is 3/7 rational or irrational
What happens to the atoms of the starting substances during a chemical reaction?
Your friend's heart beats 18 times in 15 seconds when at rest. while running, your friend's heart beats 25 times in 10 seconds.what is your friend's heart rate
People thought president van buren was responsible for the depression.
What is the second event in romeo and juliet?
What are the answers if i estimate 256.85 and 108.75?
What numbers are always prime numbers?
Which sentence from "president and chief justice" explains why taft eventually lost favor with other politicians in his party?