5x²+y²=3
by implicit differentiation we shall have:
10x+2yy'=0
the second derivative will be:
10+2y"=0
2y"=-10
y"=-5
0.1, guessing they mean largest in value
Serving to induct or bring in; introductory
Multiplying eqn no. two with 4 we add it up with eqn 1.


When


So, x = - 10/17 and y = - 42/17.
110 yards 1 mile 3600 sec
-------------- * ----------------- * -------------- = 14 miles per hour (answer)
16 sec 1760 yards 1 hr