Answer:
The possible values of  are -2.944 and -9.055, respectively.
 are -2.944 and -9.055, respectively.
Step-by-step explanation:
From statement we know that  . By Analytical Geometry, we use the equation of a line segment, which is an application of the Pythagorean Theorem:
. By Analytical Geometry, we use the equation of a line segment, which is an application of the Pythagorean Theorem:

 (1)
 (1)
Where:
 ,
,  ,
,  - x-Coordinates of points A, B and C.
 - x-Coordinates of points A, B and C.
 - y-Coordinates of points A, B and C.
 - y-Coordinates of points A, B and C. 

Then, we expand and simplify the expression above:


If we know that  ,
,  ,
,  ,
,  ,
,  and
 and  , then we have the following expression:
, then we have the following expression: 



This is a second order polynomial, which means the existence of two possible real solutions. By Quadratic Formula, we have the following y-coordinates for point B: 
 ,
, 
In consequence, the possible values of  are -2.944 and -9.055, respectively.
 are -2.944 and -9.055, respectively.