Dy/dx = dy/dt * dt/dx
xy = 4
y + x(dy/dx) = 0 by implicit differentiation.
x(dy/dx) = -y
dy/dx = -y/x
<span>dy/dx = dy/dt * dt/dx dy/dt = -2
</span>
<span>-y/x = -2 * dt/dx
</span>
y/(2x) = dt/dx
dt/dx = y/(2x)
dx/dt = 2x/y
When x = -3, xy = 4, y = 4/x = 4/-3 = -4/3
dx/dt = 2*-3/(-4/3) = -6 *-3/4 = 18/4 = 9/2 = 4.5
dx/dt = 4.5
Answer:
-10
Step-by-step explanation:
Its always best to plug in your equation in the calculator after you solve an equation to see if your answer is correct.
Answer:
I think its 3752 but i might be wrong not sure
Step-by-step explanation:
or its 15008
The expanded form for this problem is <span><span> 200,000 </span><span>+90,000 +30,000</span><span>+7,000 </span><span>+50 </span><span>+8<span> </span></span></span>
Yes, (-5,-6) is a solution to the equations!