of Let Q represent a mass radioactive plutonium (239pu) (in grams), whose half-life is 24,100. The quantity of plutonium present after t years. is Q = 18 (2/2) + / 24,100 a.) Determine the initial quantity (when +=0). g b.) Determine the guany present after 55.000 yours. (Round your to two decimal places.) answer -g

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