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Mathematics 13 Online
OpenStudy (anonymous):

Question? http://prntscr.com/29b6ea

ganeshie8 (ganeshie8):

standard form of circle :- \(\large (x - \color{green}{h}) + (y-\color{green}{k}) = \color{red}{r}^2\)

ganeshie8 (ganeshie8):

radius = \(\large \color{red}{r}\) center = \(\large \color{green}{(h, k)}\)

OpenStudy (anonymous):

k

ganeshie8 (ganeshie8):

compare ur equation wid above

OpenStudy (anonymous):

we dont have k

ganeshie8 (ganeshie8):

0 is there for the orphaned additions

ganeshie8 (ganeshie8):

:P

OpenStudy (anonymous):

ok so it means (x-5)+(y-0) = 19^2

ganeshie8 (ganeshie8):

Yes, \((x-5)^2 + y^2 = 38 \) \((x-5)^2 + (y-0)^2 = 38 \)

ganeshie8 (ganeshie8):

ugh no, 19^2 is not equal to 38 ok

ganeshie8 (ganeshie8):

\(\large (x-5)^2 + (y-0)^2 = \sqrt{38}^2 \)

OpenStudy (anonymous):

19^2 = 361

OpenStudy (kc_kennylau):

@ganeshie8 you're last equation is the same as what i just wrote...

ganeshie8 (ganeshie8):

@kc_kennylau u wrote something ?

OpenStudy (anonymous):

Did you read the replies?

ganeshie8 (ganeshie8):

its not showing up here :|

ganeshie8 (ganeshie8):

I see only my/lily replies hmm

OpenStudy (anonymous):

Well it shows up on mine did you look up above all your work?

OpenStudy (kc_kennylau):

@Victoria_Davis_2018 she opened another question so that's why it's not here

OpenStudy (anonymous):

Yes I see that now sorry @ganeshie8

ganeshie8 (ganeshie8):

ganeshie8 (ganeshie8):

i see that on my screen

ganeshie8 (ganeshie8):

oh ok cool :) i was worried if the OS is not working again lol

OpenStudy (anonymous):

why cant i see the replies they are not loading up let log out then log in wait

ganeshie8 (ganeshie8):

hey Lily we're good, lets continue...

OpenStudy (kc_kennylau):

ganeshie8 (ganeshie8):

oh ya i see that was in previous post ok now i get it :)

OpenStudy (anonymous):

Yeah sorry I can be really stubborn sometimes, really sorry

OpenStudy (anonymous):

so the correct option is J

OpenStudy (kc_kennylau):

nope in \(x-\color{green}5\) the \(\color{green}h\) is 5 :)

OpenStudy (anonymous):

So H then

OpenStudy (anonymous):

why x-5 so -5 is negative

OpenStudy (anonymous):

But in x - 5 when you take the x away it is -5

OpenStudy (kc_kennylau):

because it's \(\Large (x-\color{green}{h})^2\) not \(\Large (x+\color{green}{h})^2\) :)

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

Well I guess that is a pretty good reason so it is F?

OpenStudy (kc_kennylau):

yes :)

OpenStudy (anonymous):

Ok well I say that was a pretty good guess because I don't know how to do all this

OpenStudy (anonymous):

ok but why F i mean \[\sqrt{38}^2\] so the square and square root cancel themselves so it will be just 38

OpenStudy (kc_kennylau):

yep, but \(\Large\color{red}{r}^2\) is required, not \(\Large\color{red}{r}\), so we have to change \(38\) to something squared :)

OpenStudy (anonymous):

Sorry I know these are not related to the topic, but they could help someone

OpenStudy (kc_kennylau):

Jesus will always be king.

OpenStudy (anonymous):

thanks

OpenStudy (kc_kennylau):

no problem :)

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