anthonynds anthonynds
  • 22-05-2020
  • Mathematics
contestada

x^2+y^2 +4x−6y+9=0
what is the center and the radius

Respuesta :

santiagochile7777 santiagochile7777
  • 26-05-2020

Answer: Center (-2,3), radius 2

Step-by-step explanation: Subtract 9 from both sides, then complete the square for the x and y variables & add to both sides: [tex]x^2+4x+4+y^2-6y+9=-9+4+9[/tex] [tex]= (x+2)^2+(y-3)^2=4[/tex]. The center of this circle in the form [tex](x-a)^2+(y-b)^2=r^2[/tex] is (a,b) with radius r. a=-2, b=3, r=[tex]\sqrt{4}[/tex]=2

Answer Link

Otras preguntas

Draw the best lewis structure for cl3-. what is the formal charge on the central cl atom?
Energy possessed by a sample of matter because of its position or condition is called
Which statement best explains the value of 16 − (−3)? (1 point) The additive inverse of −3 is −3, so 16 − (−3) = 19. The additive inverse of −3 is −3, so 16 − (
Xyx Motors pays Nick $1,567.46 in dividends every year. If the dividend on one share of Xyx Motors is $4.33, how many shares does Nick own? a. 383 b. 457 c. 362
what is 15.3333333333 as a fraction in simplest form?
I NEED HELP ASAP(01.07 LC)What is the sum of 3.6 × 103 and 6.1 × 103? (1 point)9.7 × 1039.7 × 10697 × 10397 × 106
additive inverse of 1/3
A wind turbine has 12,000 kg blades that are 36 m long. the blades spin at 24 rpm .if we model a blade as a point mass at the midpoint of the blade, what is the
Need pre-cal help. Will mark best answer brainliest
Why was Germany unable to translate its early triumphs into final victory in 1941?