20. The action of a spring can be modeled by the function y = 4 cos x – cos x sin x after x seconds Within the interval 0 < x < 8, when does the spring have a height of 3 feet? (Select all that apply.) 5.391 seconds 5.132 seconds 0.536 seconds 0.9 seconds 6.819 seconds

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Q: Q 5: (a) Assume that after w months, butterflies' populace in 1000 is calculated as: f(w): = 12w +…

A: Assume that after w months, butterflies populace in 1000 is calculated as follows:…

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