SOLUTION: Suppose that the amount, in grams, of polonium 210 present in a given sample is determined by the function defined by: At = 400e?0.032t ......... where t is the time in years. Find

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Question 1008385: Suppose that the amount, in grams, of polonium 210 present in a given sample is determined by the function defined by: At = 400e?0.032t ......... where t is the time in years. Find the amount present in a sample of 400 grams after 25 years.
Answer by josgarithmetic(39613) About Me  (Show Source):
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The function needs to be stated, highlight_green%28A%28t%29=400e%5E%28-0.032t%29%29. The factor 400 would be the initial amount of polonium 210 at the beginning, t=0. The question is to evaluate A%2825%29.

This is 400%2Ae%5E%28-0.032%2A25%29
180 grams