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A radioactive element decays exponentially

A radioactive element decays exponentially according to the function Q(t) = Q0ekt.If 100 mg of the element decays to 25 mg in 12
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2. asked by Rania
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A radioactive element decays exponentially according to the function Q(t) = Q0ekt.If 100 mg of the element decays to 25 mg in 12
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2. asked by Rania
3. 3,642 views
An unknown radioactive element decays into non-radioactive substances. In 420 days the radioactivity of a sample decreases by 39
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2. asked by Kim
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An unknown radioactive element decays into non-radioactive substances. In 120 days the radioactivity of a sample decreases by 59
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2. asked by Erica
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A scientist has 37 grams of a radioactive substance that decays exponentially. Assuming k=-0.3,how many grams of radioactive
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2. asked by Marissa
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If 250 mg of a radioactive element decays to 200 mg in 48 hours, find the half-life of the element
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2. asked by Dom
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IF 80mg of a radioactive element decays to 10mg in 30 minutes, the half-life of this element isa.10 min b.20 min c.30 min d.40
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2. asked by Jazmin
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An unknown radioactive element decays into non-radioactive substances. In 100 days the radioactivity of a sample decreases by 64
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2. asked by Rachel
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1) A radioactive substance decays exponentially. A scientist begins with 150 milligrams of a radioactive substance. After 26
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2. asked by Hai
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A radioactive substance decays exponentially in such a way that after 50 years, 60% of the initial amount remains. Find an
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2. asked by Rish
3. 815 views