Question 174540
1.  Was the problem stated:  {{{4/(sqrt(x+h)-sqrt(x))}}}???

If so, the answer is {{{4(sqrt(x+h) + sqrt(x) )/ h }}}.  I think that would be B, but you forgot to close the parentheses in the numerator.


2.  Looks correct!


3.  {{{sqrt((32x^2y)/49)}}}
 = {{{sqrt((16x^2)/49)*sqrt(2y)}}}
               ={{{((4x)/7)*sqrt(2y)}}}
={{{ (4x *sqrt(2y))/7}}}

R^2