The function f(x) = 200 * (0.5) ^ (x / 50) models the amount in p radioactive material stored in a concrete vault , where x is the material was put into the vault . Find the amount of ra vault after 140 years . Round to the nearest whole number .
Added by Bridget M.
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5) ^ (x / 50) to find the amount of radioactive material stored in the concrete vault after 140 years. f(140) = 200 * (0.5) ^ (140 / 50) f(140) = 200 * (0.5) ^ 2.8 f(140) = 200 * 0.240226 f(140) ≈ 48.0452 Show more…
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