Question

If r= 25 & y= 15, then x= ?

Answer 1

\[x^2 + y^2 = r^2\]
\[x^2 = r^2 - y^2\]
\[x = \sqrt{r^2 - y^2}\]
\[x = \sqrt{25^2 - 15^2}\]

Answer 2

20?

Answer 3

you are correct

Answer 4

if x= 10 and y= 6 what is r? how would i set that up?>

Answer 5

\[\Large x^2 + y^2 = r^2\]

\[\Large (10)^2 + (6)^2 = r^2\]

\[\Large 100 + 36 = r^2\]

I'll let you finish

Answer 6

i got 4 square root 17 ?

Answer 7

\[\Large 100 + 36 = r^2\]

\[\Large 136 = r^2\]

\[\Large r^2 = 136\]

\[\Large r = \sqrt{136}\]

\[\Large r = \sqrt{4*34}\]

\[\Large r = \sqrt{4}*\sqrt{34}\]

\[\Large r = 2\sqrt{34}\]

Answer 8

So you were close

Answer 9

somehow you factored out an additional 2