The Amount of Carbon-14 Remaining in a Sample That Weighs

question 4

Multiple Choice

The amount of carbon-14 remaining in a sample that weighs A is given by where t is time in years. If tests on a fossilized skull reveal that 99.97% of the carbon-14 has decayed, how old is the skull? Select the correct answer rounded to the nearest integer.

• A)2,629 years old
• B)23,234 years old
• C)0 years old
• D)1,985 years old
• E)28,978 years old

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