OpenStudy (anonymous):

derivative help

4 years ago
OpenStudy (anonymous):

A 13ft ladder is leaning against a house when its base starts to slide away. By the time the base is 12ft from the house the base is moving at the rate of 5ft/sec b) at what rate is the area of the triangle formed by the ladder, wall, and ground changing at that moment

4 years ago
OpenStudy (anonymous):

In part a I found da/dt (height change) to be 12 ft/sec

4 years ago
OpenStudy (anonymous):

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4 years ago
OpenStudy (anonymous):

I got it nevermind forgot for A=1/2(bh) when you do the derivative you do the product rule

4 years ago