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

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 is elevator music?

Austria, Hungary, Yugoslavia, Czechoslovakia, and _________________ became independent nations after World War I.

Which of the following is not equivalent to the formula d = rt?

Woodrow Wilson’s campaign slogan in 1916 was “He kept us out of __________.”

How much gas is there in 100cm3 of air?

A soccer player kicks a ball with a speed of 30 m/s at an angle of 10. How long does the ball stay in the air?

(1) Glen’s horse, Tipper, grazes lazily in his grassy.In sentence (1), what part of speech is "lazily"? (A)verb (B)adverb (C)adjective

What is the most current NASA mission on Mars?

How much gas is there in 100cm3 of air?

can someone help? If 3∈A and 3B, then which of the following statements is not true?A: 3 is an element of B complement.B: 3 is an element of A∪B.C: 3 is an elem