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Science-Related Homework Help Calculus Topic started by: sxllykxm on Dec 9, 2021



Title: As the zoom lens in a camera moves in and out, the size of the rectangular image changes. Assume
Post by: sxllykxm on Dec 9, 2021
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


Title: As the zoom lens in a camera moves in and out, the size of the rectangular image changes. Assume
Post by: MAry1395 on Dec 9, 2021
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