Wednesday

April 23, 2014

April 23, 2014

Posted by **Lori** on Tuesday, October 16, 2012 at 5:31pm.

- calculus -
**Steve**, Tuesday, October 16, 2012 at 6:11pmif the distance from the plane to the observer is y, and the distance the plane has flown is x, all in km,

y^2 = 4^2 + x^2

2y dy/dt = 2x dx/dt

when x = 3, y=5

10 dy/dt = 2(3)(340)

dy/dt = 204 km/hr

**Related Questions**

Pre-calculus - An airplane has an airspeed of 150 km/hr. It is to make a flight ...

Calculus - An airplane is flying at 550 km/h on a heading of 080 degrees: The ...

Physics - An airplane flies 340 km due east, makes a right-angle turn, and then ...

Calculus - An airplane is flying at 550 km/h on a heading of 080 degrees. The ...

calculus - An airplane is flying at 550 km/h on a heading of 080 degrees. The ...

Airplane & Radar - (Airplane & Radar) An airplane is flying (horizontally) at ...

physics - An airplane is flying NW with a ground speed of 600 Km/h. If a 125 Km/...

calculus - A small aircraft, on a heading of 225 degrees, is cruising at 150 km/...

physics - After flying for 13 min in a wind blowing 37 km/h at an angle of 25° ...

Math - An airplane takes off in a straight path. When it has traveled 5 km, it ...