Question

assume that X=x(t) and Y=y(t). let y=x^2+3 and dx/dt=4 when x=5. find dy/dt when x=5

Answer 1

Answer:

40

Step-by-step explanation:

Given dx/dt = 4 and x=5

Y = y(t)

y = x^2+3

dy/dt = 2x(dx/dt)

= 2×5×4

= 40