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 ( 19+ )
Otras preguntas
What is 20% of $40.00 please help
What is 20% of $40.00 please help
What are the factors of 65. Like a factor tree.
what are the three uses for geography???
wheels are 1.25 inches in diameter covert the wheels diameter to feet
Brian has 3 basketball cards and 5 baseball cards. What fraction of Brian's cards are baseball cards?
Is 3/4 and 3/8 equivalent fractions and why? Thanks
How do you graph and work problem x+4y=16??
wheels are 1.25 inches in diameter covert the wheels diameter to feet
wheels are 1.25 inches in diameter covert the wheels diameter to feet
