Question

in the following drawing find a if b=4 and c=21 round your answer to two decimal places

Answer 1

\(a^2+b^2=c^2\implies a^2=c^2-b^2\implies a=\pm\sqrt{c^2-b^2}\)

But since we are dealing with positive quantity's, we have \[a=\sqrt{c^2-b^2}\]

Answer 2

Can someone answer my question?

Answer 3

that did not show that in my book for the lesson

Answer 4

@templeguy what is your question?

Answer 5

@zzr0ck3r Here it is...

Answer 6

What was the joke from 19:19 to 19:47 in this vid http://thevideo.me/96qe2nmzox4i

Answer 7

yeah I am not installing things.

Answer 8

@zzr0ck3r you don't have to install anything