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I believe it is Amy's, because you said Amy's target heart rate zone is 140bpm -- 186bpm. Thus, Amy's is higher
Physical barrier to protect us from pathogens
Even im not giving the result, i can tell you how to do it: Since time period is given as 6, we can calculate it's:
<span><span>R(t)=0.89sin(<span>π3</span>∗1.5)
Please do the calculations and you will get your answer. Hope it helps</span></span>
