Question

xy=4 whats dy/dt when x=8 and dx/dt=10

Answer 1

y = 4/x

dy/dt = -4/x^2 times dx/dt
dy/dt = -4/64 (10)
dy/dt = -40/64 or -5/8

Answer 2

thank you

Answer 3

welcome.

Answer 4

wait, how did u get from 4/x to -4/x^2