Answer:
A
Step-by-step explanation:
We have the equation:

Take the derivative of both sides with respect to x:
![\frac{d}{dx}[x^2+xy-3y]=\frac{d}{dx}[3]](https://tex.z-dn.net/?f=%5Cfrac%7Bd%7D%7Bdx%7D%5Bx%5E2%2Bxy-3y%5D%3D%5Cfrac%7Bd%7D%7Bdx%7D%5B3%5D)
Implicitly differentiate:

Solve for dy/dx:

Divide:

To find dy/dx at (2, 1), substitute 2 for x and 1 for y. So:

Hence, our answer is A.
Answer:
Option B
Step-by-step explanation:
The Europeans moved to American colonies in order to increase their wealth and broaden their influence over world affairs.
Answer:
70/100
Step-by-step explanation:
You have 70 White socks
You have to add 70, 26, and 4.
When you add those, you get 100, making the answer 70/100
Answer:
900,000
Step-by-step explanation:
there you go bud