Posted by **Lost** on Tuesday, March 6, 2012 at 6:21am.

I cannot seem to get the right answer.

Animal Pulse Rate According to one model, an animalâ€™s heart rate varies according to its weight. The formula N(w)=885w^-1/2 gives an estimate for the

average number N of beats per minute for an animal that weighs w pounds. Use the formula to estimate the heart rate for a horse that weighs 800 pounds. To be brutally honest I cannot get this right at all.

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