作业帮一道英语微积分题 （中文回答就好 ）
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/17 01:55:37
一道英语微积分题 （中文回答就好 ）
It has been hypothesized that the human heart is capable of beating only a fixed number of times and then it gives up. As far-fetched as this hypothesis may be, assume it to be true for the purpose of this problem.
Oprah would like to develop a personal exercise regime that maximizes her lifespan. To do so, she wants to minimize her daily number of heart beats. She discovers that by exercising every day for T hours, her heart rate throughout the rest of the day (24 − T) can be predicted by the formula:
where H(T) is measured in beats per hour. During her exercise period, her heart rate is always 120 beats per minute.
Describe what the formula for H(T) says about Oprah's heart rate during the rest of the day as a function of the time (T) she spends exercising. In particular, how does the additional benefit she gets by exercising for one additional hour if she's only exercising for a short period of time compare to the benefit of an additional hour if she is exercising for a long period of time.
Provide Oprah with some advice on her exercise regime. To be specific, how many hours (T) should she exercise each day?
It has been hypothesized that the human heart is capable of beating only a fixed number of times and then it gives up. As far-fetched as this hypothesis may be, assume it to be true for the purpose of this problem.
Oprah would like to develop a personal exercise regime that maximizes her lifespan. To do so, she wants to minimize her daily number of heart beats. She discovers that by exercising every day for T hours, her heart rate throughout the rest of the day (24 − T) can be predicted by the formula:
where H(T) is measured in beats per hour. During her exercise period, her heart rate is always 120 beats per minute.
Describe what the formula for H(T) says about Oprah's heart rate during the rest of the day as a function of the time (T) she spends exercising. In particular, how does the additional benefit she gets by exercising for one additional hour if she's only exercising for a short period of time compare to the benefit of an additional hour if she is exercising for a long period of time.
Provide Oprah with some advice on her exercise regime. To be specific, how many hours (T) should she exercise each day?
1.随着锻炼时间的加长,每天余下的时间的心率会减慢；如果她每天只锻炼一小段时间,在此基础上增加一小时的锻炼量,其心率下降脚大；如果她每天锻炼的时间比较长,则在此基础上增加一小时的锻炼量,其心率下降较小.
2.
不知道我算的有没有错,如果有问题我们再讨论qq：195293630
2.
不知道我算的有没有错,如果有问题我们再讨论qq：195293630