bailey48923
bailey48923 bailey48923
  • 21-08-2017
  • Mathematics
contestada

What is the radius of a circle whose equation is x2 + y2 + 8x – 6y + 21 = 0?

Respuesta :

jbmow
jbmow jbmow
  • 21-08-2017
x^2 + y^2 + 8x – 6y + 21 = 0
x^2 + 8x +16 + y^2 -6y +9 = -21 + 16 +9
(x+4)^2 + (y-3)^2 = 4
So the radius is 2
Answer Link
lydialiliu
lydialiliu lydialiliu
  • 13-10-2020

Answer:

2 units

Step-by-step explanation:

edgenuity 2020

hope this helps!

Answer Link

Otras preguntas

You order two drinks for $3.49 each and an entrée for $17.95. If sales tax is 4%, what is your total bill
You order two drinks for $3.49 each and an entrée for $17.95. If sales tax is 4%, what is your total bill
Use this image to answer the following question. The ice cream shop knows it can sell at least 12 gallons of chocolate ice cream per week. What would be the mos
Which of the following best summarizes the career of Thurgood Marshall? A. Marshall was a minister who, along with the NAACP, filed a lawsuit to allow his daugh
_____ is a type of causal relationship. Induction Reasoning Logic Chain of events
Antiviral medications are a common treatment for
find the product 2y^2(3x+5z)
Identify the polynomial. x 3 - y 3 + z
Southern plantation owners in the colonial era could not depend on using indentured servants for labor because
what is longer time wise 8 oclock to 11 oclock or 12:30 to 4 oclock