SOLUTION: A piece of charcoal is found to contain 39​% of the element B that it originally had. ​(a) When did the tree from which the charcoal came​ die? Use 5600 years as the​ half

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Question 1153384: A piece of charcoal is found to contain 39​% of the element B that it originally had.
​(a) When did the tree from which the charcoal came​ die? Use 5600 years as the​ half-life of the element B.
​(b) Using a graphing​ utility, graph the relation between the percentage of the element B remaining and time.
​(c) Using​ INTERSECT, determine the time that elapses until half of the the element B remains.
​(d) Verify the answer found in part ​(a).
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
A possible start can be y=p%281%2F2%29%5E%28x%2F5600%29, and that p%2F2=p%281%2F2%29%5E%285600%2F5600%29 when one half-life has gone by.

You can do the rest of this.