What is the distance from the point (−3, −b, c) to the origin?

Answer:
[tex]\sqrt{9+b^2+c^2}\,\text{units}[/tex]
Step-by-step explanation:
The distance formula tells you the distance d between the points (0, 0, 0) and (-3, -b, c) is ...
d = √((x2 -x1)² +(y2 -y1)² +(z2 -z1)²) = √((-3-0)² +(-b-0)² +(c-0)²)
= √(9 +b² +c²)