swianet
swianet
17-05-2017
Mathematics
contestada
x2 −2x + y2 − 6y = 26 what is the radius
Respuesta :
mjankiewicz
mjankiewicz
17-05-2017
[tex]r > 0\\\\(x-a)^2+(y-b)^2=r^2\\\\x^2-2x+y^2-6y=26\\\\ (x-1)^2-1+(y-3)^2-9=26\\\\ (x-1)^2+(y-3)^2-10=26 \ |+10\\\\(x-1)^2+(y-3)^2=36\\\\ r^2=36 \ \Rightarrow \ r=6[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 77+ )
Otras preguntas
Rachel can finish the job in 5 hours, while Carl can finish the same job in 8 hours. How long will it take them to finish the job together?
why is the bottle dented after being cooled in the refrigerator?
a local hamburger shop sold a combined total of 616 hamburgers and cheeseburgers on sunday. there were 66 moore cheeseburgers sold than hamburgers were sold on
List at least three characteristics of the mountain environment
Devaughn is 7 years older than Sydney. The sum of their ages is 57. What is Sydney's age?
Which of these equations have no solution? Check all that apply. 2(x + 2) + 2 = 2(x + 3) + 1 2x + 3(x + 5) = 5(x – 3) 4(x + 3) = x + 12 04- (2x + 5) = (-4x - 2)
a fund manager has $2,931,200 in an investment fund, and he expects annual returns of 5%. if he consistently achieves his target returns, then how much money wi
Re-write the statement 19+7÷2-5 by including ONE pair of brackets to make the total value equal to 8
Kaylee wants to test her hypothesis that she performs better on tests after getting more sleep.in which way will she best be able to do this
Which sentence shows the best placement for the modifier "covered in clover"? Covered in clover, the rabbit hopped through the meadow. The rabbit hopped through
