Question

Hi! help with this problem!

Attached file:
http://imageshack.us/photo/my-images/266/1h70.png/

Answer 1

Pythagoras theorem

Answer 2

It must include derivatives, right?

Answer 3

Care for the units they're using, you have to convert them first, from feet to inch

Answer 4

\[y = \sqrt{x^{2}+132^{2}}\]
\[\frac{dy}{dt} = \frac{dy}{dx}*\frac{dx}{dt}\]
solve for dx/dt, given dy/dt = 5 and x=480 in.

Answer 5

so dy/dx is? differentiate the first eqn? @dumbcow

Answer 6

Yes