Question: Please answer a,b,and c Strontium-90 ( Sr) is a by-product of nuclear fission with a hand-life of approximately 28.9 yr. After the Chernobyl nuclear reactor

Please answer a,b,and c

Strontium-90 ( Sr) is a by-product of nuclear fission with a hand-life of approximately 28.9 yr. After the Chernobyl nuclear reactor accident in 1986, large areas 28.9 surrounding the site were contaminated with 'Sr. If 20 ug (micrograms) of Sr is present in a sample, the function A (1) = 20- gives the amount A (1) (in ug) present after 1 years. Evaluate the function for the given values of t and interpret the meaning in context. Round to 3 decimal places if necessary. (a) A (260.1) (b) A (144.5) (c) A (289) Part: 0 / 3 Part 1 of 3 (a) A (260.1) = X After years, approximately Ng of 'sr remains

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