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The half-life of cesium-137 is 30 years. Suppose we have a 180 mg sample. (a) Find the mass that remains after t years. y(t) = mg (b) How much of the sample remains after 150 years? (Round your answer to two decimal places.) y(150) = mg (c) After how long will only 1 mg remain? (Round your answer to one decimal place.) t = years

The half-life of cesium-137 is 30 years. Suppose we have a 180 mg sample. (a) Find the mass that remains after t years. y(t) = mg (b) How much of the sample remains after 150 years? (Round your answer to two decimal places.) y(150) = mg (c) After how long will only 1 mg remain? (Round your answer to one decimal place.) t = years

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The half-life of cesium-137 is 30 years. Suppose we have a 180 mg sample. (a) Find the mass that remains after t years.
y ( t ) = ◻ m g
(b) How much of the sample remains after 150 years? (Round your answer to two decimal places.)
y ( 150 ) =
◻ mg (c) After how long will only 1 mg remain? (Round your answer to one decimal place.) t = ◻ years

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