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Lyrx [107]
3 years ago
15

Each side of a square is increasing at a rate of 7 cm/s. at what rate is the area of the square increasing when the area of the

square is 81 cm2?
Mathematics
1 answer:
valentina_108 [34]3 years ago
8 0
Consider this option:
1. initial_area_sq=a²=81 (where a - the length of the side), it means, that a=9 cm.
2. according to the condition new_a=a+7=9+7=16 cm.
new area_sq=(new_a)²=256.
3. new_area_sq / initial_area_sq = 256/81≈3.160494.or 316.0494%.
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Answer:

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