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Author Question: Solve the problem. Round your answer, if appropriate.As the zoom lens in a camera moves in and out, ... (Read 31 times)

Mollykgkg

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Solve the problem. Round your answer, if appropriate.

As the zoom lens in a camera  moves in and out, the size of the rectangular image changes. Assume that the current image is 4 cm × 3 cm. Find the rate at which the area of the image is changing (dA/df) if the length of the image is changing at 0.6 cm/s and the width of the image is changing at 0.2 cm/s.
◦ 5.2  cm2/sec
◦ 6.0  cm2/sec
◦ 3.0  cm2/sec
◦ 2.6  cm2/sec


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Marked as best answer by Mollykgkg on Dec 18, 2021

meganlapinski

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Mollykgkg

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Reply 2 on: Dec 18, 2021
Gracias!


TheDev123

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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