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The half-life of cesium-137 is 30 years. Suppose we have a 130−mg sample. (a) Find the mass that remains after t years. y(t) = mg (b) How much of the sample remains after 100 years? (Round your answer to two decimal places.) mg (c) After how long will only 1 mg remain? (Round your answer to one decimal place.) t = yr

The half-life of cesium-137 is 30 years. Suppose we have a 130−mg sample. (a) Find the mass that remains after t years. y(t) = mg (b) How much of the sample remains after 100 years? (Round your answer to two decimal places.) mg (c) After how long will only 1 mg remain? (Round your answer to one decimal place.) t = yr

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The half-life of cesium-137 is 30 years. Suppose we have a 130 − m g sample. (a) Find the mass that remains after t years.
y ( t ) = ◻ m g
(b) How much of the sample remains after 100 years? (Round your answer to two decimal places.) ◻ mg (c) After how long will only 1 mg remain? (Round your answer to one decimal place.) t = ◻ yr

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