Question 1072273

Find x. The angle B is a right angle: http://imgur.com/a/xV8jA
I'm not sure if I've got the answer right. 
I have solved it but came to get the answers 0 or 12 but can x really be equal to 0? Since when you sub x=0 back in, you get -4 at AB and length cannot be negative... right?
<pre>You’re correct. When you sub 0 for x, side AB will be – 4, and distance/length measurement CANNOT be negative. 
So, you are correct. Good job!!