SOLUTION: What is the diameter of the following circle: (x + 4)2 + (y – 9)2 = 18? I have an online math class and i have no idea how to do this. Thank you.

Algebra.Com
Question 608420: What is the diameter of the following circle: (x + 4)2 + (y – 9)2 = 18?
I have an online math class and i have no idea how to do this. Thank you.

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
What is the diameter of the following circle:
(x + 4)^2 + (y – 9)^2 = 18?
---
Radius = sqrt(18) = 3*sqrt(2)
---
Diameter = 2*radius = 6*sqrt(2)
===================================
cheers,
Stan H.
=============

RELATED QUESTIONS

I am taking an algebra class online and I have no idea how to work this problem. Could... (answered by vertciel,Zucchini)
What is the diameter of the following circle: (x + 4)2 + (y – 9)2 =... (answered by stanbon)
What is the root of X^2+X+1=0? I have no idea how to do roots. Thanks... (answered by jim_thompson5910)
What is the equation of the line that is parrellel to "y=3x + 4 and passes through ( -2,... (answered by ewatrrr)
I have tried to figure out how to properly graph this problem however, when I looked at... (answered by Fombitz,algebrapro18)
The problem asks to find the vertex and graph the following quadratic function. y=-x+6x (answered by scott8148,solver91311)
I need to find the point of intersection between a circle and ellipse. Here are the... (answered by lwsshak3)
How do you figure out what is the average (arithmetic mean)of 8,7,7,5,3,2and 2? I have... (answered by Alan3354)
My math teacher gave me a problem with the following instructions: "Write the equation... (answered by KMST)