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Mathematics 12 Online
OpenStudy (anonymous):

It is observed that for the race of Fraggles, the force of mortality at age x years is given by b(x) = 3x^2 / 125000 - x^3 for 0<_x <_50 For a Fraggle of age 45 determine both the complete and curtate expectations of life. Give your answers to 2 decimal places.

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