Question

Find the length of the radius of the following circle.

Answer 1

\[ (x + 2)^{2} + y ^{2} = 10\]

Answer 2

@satellite73

Answer 3

@CrayolaCrayon_ , are you familiar with this equation \[x^2 + y^2 = r^2\] ??

Answer 4

I would have to know what x2 and y2 are :/

Answer 5

oh wait wait wait that's squared, my bad!

Answer 6

\[2^{2}+10^{2}=r ^{2}\]?

Answer 7

Nope.

Answer 8

\[r^2 = 10\]
then solve for r. That's it. :)

Answer 9

sooo 5?

Answer 10

is the radius?

Answer 11

Still nope, :P

Answer 12

\[\sqrt{(10)}\] ?

Answer 13

\[r^2 = 10\], right
So to solve for r, we have to square the whole equation. And it will be like this
\[\sqrt{r^2} = \sqrt{10}\]
Hence R is?

Answer 14

Yup you got it! :)

Answer 15

Ohh, thank you!

Answer 16

No problem :)