4x^2 + 5xy - y^2 = 6
Implicitly differentiating both sides,
4(2x) + 5(x y' + y) - 2yy' = 0
where y' = dy/dx
8x + 5xy' +5y -2yy' = 0
combining y' terms
y' (5x-2y) +8x +5y = 0
y'(5x-2y) = -(8x+5y)
dy/dx = -(8x+5y)/(5x-2y)
or
dy/dx = (8x+5y)/(2y-5x)
Answer:
The answer is (-9)
Step-by-step explanation:
Answer:
20-(4(3)+7)=20 or 20-C=G
Step-by-step
The money allowed is $20 so the cost of everything subtracted from 20 is equal to the amount of change received a.k.a G
Answer:
(6,0,-3,6) are the range !!!
