Answer:

Step-by-step explanation:
Differentiating, you get ...
... x·dy +y·dx +dx +dy = 2x·dx +2y·dy
Collecting terms gives ...
... dy(x +1 -2y) = dx(2x -y -1)
... dy/dx = -(2x -y -1)/(2y -x -1)
It either B or D. zoz dnd keep
1 is definately B
2 is B as well
Answer:
it is around 51
Step-by-step explanation:
sorry i'm doing this again, my answer got deleted :(
bro use a photo math...................