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Mathematics 10 Online
OpenStudy (anonymous):

A satellite camera takes a rectangular-shaped picture. The smallest region that can be photographed is a 4-km by 4-km rectangle. As the camera zooms out, the length l and width w of the rectangle increase at a rate of 3 km/sec. How long does it take for the area A to be at least 4 times its original size

OpenStudy (anonymous):

Can you help?

OpenStudy (jdoe0001):

hmm, dunno

OpenStudy (anonymous):

What is the original size of the region being photographed..before zooming out?

OpenStudy (anonymous):

4 by 4

OpenStudy (jdoe0001):

|dw:1376935237218:dw|

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