After one year, a sample of radioactive material disintegrates to 94% of the original amount. For each part, round the answer to two decimal places. (a) Find the half-life of the material. (b) Find the time at which the material disintegrates to 80% of the original amount.
After one year, a sample of radioactive material disintegrates to 94% of the original amount. For each part, round the answer to two decimal places. (a) Find the half-life of the material. (b) Find the time at which the material disintegrates to 80% of the original amount.
Chapter6: Exponential And Logarithmic Functions
Section6.7: Exponential And Logarithmic Models
Problem 23SE: A substance has a half-life of 2.045 minutes. If the initial amount of the substance was 132.8...
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After one year, a sample of radioactive material disintegrates to 94% of the original amount. For each part, round the answer to two decimal places.
(a) Find the half-life of the material.
(b) Find the time at which the material disintegrates to 80% of the original amount.
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