Mathematics, 10.04.2020 05:19, Daxtyn
Strontium 90 is a radioactive material that decays according to the function Upper A left parenthesis t right parenthesis equals Upper A 0 e Superscript negative 0.0244 t Baseline comma where Upper A 0 is the initial amount present and A is the amount present at time t (in years). Assume that a scientist has a sample of 500 grams of strontium 90.
(a) What is the decay rate of strontium 90?
(b) How much strontium 90 is left after 10 years?
(c) When will only 200 grams of strontium 90 be left?
(d) What is the half-life of strontium 90?
Answers: 1
Mathematics, 21.06.2019 18:00, cheerthi16
Sandy is ordering bread rolls for her party, she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.
Answers: 1
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