Respuesta :

Answer:

dy/dt=2

Step-by-step explanation:

y=√x

dy/dx=1/(2√x)

when x=9

dy/dx=1/(2√9)=1/(2×3)=1/6

dy/dx=(dy/dt)/(dx/dt)

1/6=(dy/dt)/12

dy/dt=1/6×12=2

The value of dy/dt at x = 9 is 2 if the y = √x and  dx/dt = 12 after differentiation.

What is differentiation?

differentiation is the technique in which the derivative of y with respect to x.

We have:

y = √x

dy/dx = 1/(2√x)

dy/dx at x =9

= 1/6

dy/dx = (dy/dt)/(dx/dt)

1/6 = (dy/dt)/12

dy/dt = 1/6×12

dy/dt =2

Thus, the value of dy/dt at x = 9 is 2 if the y = √x and  dx/dt = 12 after differentiation.

Learn more about the differentiation here:

brainly.com/question/2292940

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