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shelby1290
 one year ago
Determine the radius and the center of the following circles. Round to the nearest tenth.
a) x^2 + y^2 = 81
radius= ? center=?
b) x^2 + y^2 = 1
radius= ? centre= ?
shelby1290
 one year ago
Determine the radius and the center of the following circles. Round to the nearest tenth. a) x^2 + y^2 = 81 radius= ? center=? b) x^2 + y^2 = 1 radius= ? centre= ?

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434503664766:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2the original x and y can be written as (x0) and (y0) dw:1434503681112:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.281 is the same as 9^2 dw:1434503731384:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434503759321:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2compare that to \(\Large (xh)^2 + (yk)^2 = r^2\) dw:1434503785488:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434503824871:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2Hopefully all that makes sense?

shelby1290
 one year ago
Best ResponseYou've already chosen the best response.1@jim_thompson5910 yea it makes sense but which one is the centre?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2(h,k) is the center r is the radius

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434503924630:dw

shelby1290
 one year ago
Best ResponseYou've already chosen the best response.1and for part b you can't square 1 so what do you do ?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yes you can, 1 = 1^2

shelby1290
 one year ago
Best ResponseYou've already chosen the best response.1i'm going to try part by myself and then you can check it over for me

shelby1290
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434504154480:dw

shelby1290
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434504263508:dw

shelby1290
 one year ago
Best ResponseYou've already chosen the best response.1@jim_thompson5910 ^

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2very nice you have the correct steps, center and radius

shelby1290
 one year ago
Best ResponseYou've already chosen the best response.1thanks for the help!

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2you're welcome
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