Suppose an unknown radioactive substance produces 7200 counts per minute on a Geiger counter at a certain time, and only 900 counts per minute 9 days later. Assuming that the amount of radioactive substance is proportional to the number of counts per minute, determine the half-life of the radioactive substance.  The radioactive substance has a half-life of ........ days

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A: Please see the below picture for detailed solution.

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A: given function is :- f(x) =3 tan-1x4+5ln16+x2then we have to find its derivative now ,     f'(x) =…

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A: We can solve the given problem by using simpson rule.

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Q: determine the volume of a right trapezoidal cylinder

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