In class I gave you two functions:  f(x)=sqrt(x) and g(x)=sqrt(-x).  I then asked you to solve for (f*g)(x) and (f/g)(x) and find their domains.  We already discussed the compositions in class, but I left the domains for you to figure out.  Please post them below.  You will have until 2:00 AM tonight (Saturday morning) to post your response.