SOLUTION: 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 b

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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?

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
The link to your picture: http://imgur.com/a/xV8jA

If the angle at point B is supposed to be 90 degrees, then .








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x=0 is NOT a solution for this problem. You saw why.
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

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?
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!! 

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