Sunday

February 1, 2015

February 1, 2015

Posted by **Lost student** on Saturday, March 12, 2011 at 12:20am.

- Calculus -
**drwls**, Saturday, March 12, 2011 at 2:08amLet the distance of the bottom of the ladder from the wall be x, and let the distance of the top of the ladder from the floor be y.

x^2 + y^2 = 256

You want to know dy/dt when dx/dt = 3 and x = 2. At that time, y^2 = 252 and y = 15.87

2x *dx/dt + 2y*dy/dt = 0

dy/dt = -(x/y)*dx/dt = -0.126 dx/dt

Use that equation to calculate dy/dt

**Answer this Question**

**Related Questions**

Calculus - The top of a 24 foot ladder, leaning against a vertical wall, is ...

Calculus II - A 24 foot ladder is leaning against a building. Let x be the ...

Calculus - A 20' ladder leans against a building. The bottom of the ladder is ...

Calculus - A 17 foot ladder is leaning against a wall. The bottom of the ladder...

Calculus Ab - A 26 foot step ladder is leaned up against a 30 foot building to ...

algebra - 2. A 10 foot ladder is leaning against a house. The bottom of the ...

Calculus - 1a. 15 ft ladder is placed against a vertical wall. the bottom of the...

Calculus Please Help!! - "A 13-foot ladder is leaning against a building when ...

Math - Suppose there is a 10 meter ladder leaning against the wall of a building...

CALCULUS HELP!! - I haven't done this type of problem in a while, so if someone ...