mageRylioana mageRylioana
  • 19-11-2016
  • Mathematics
contestada

If x^2+y^2 =25 and dy/dt =6, find dx/dt when y=4

Respuesta :

syed514
syed514 syed514
  • 20-11-2016
2x dx/dt +2y dy/dt =0
x dx/dt +y (6)=0
dx/dt= -6y/x
dx/dt= -6*4 /x
dx/dt=-24/x
also from the given equation x^2= 25-16=9 or x=3
using this we get
dx/dt=-24/3 =-8

Answer Link

Otras preguntas

If r and s can be any integers such that s > 10 and 2r + s = 15, which of the following is the solution set for r ?
Someone Help please?!?!
what is a polyhedral?
what is a fleet of warships called
does tennessee have any deserts
The diagram to the right is composed of carbon hydrogen and oxygen so is an example of a
Verify (2cos2x)/(sin2x) - cotx - tanx = -2tanx
what important polymer is located in the nucleus ?
Which of the following patterns of inheritance describes interactions between multiple genes? A. Epistasis B. Sex linkage C. Codominance D. Simple dominance E.
what are 4 biotic facts about the tundra??