A radioactive substance has a half-life of 250 years. Determine the age of the substance if it has retained 74% of its original amount.
Added by Rebecca S.
Close
Step 1
N(t) = N₀ × e^(-λt) where N(t) is the amount at time t, N₀ is the initial amount, λ is the decay constant, and t is the time. Show more…
Show all steps
Your feedback will help us improve your experience
Kathleen Carty and 95 other Precalculus educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A radioactive substance has a half-life of 250 years. a)Determine the age of the substance if it has retained 74% of its original amount. b) If a population increases at a rate of 1.5% per year, find its doubling period.
Kathleen C.
The half-life of a radioactive substance is 56 years. If there is 250 mg of the substance now, estimate the rate of decay of the substance after 100 years.
Gregory H.
Supreeta N.
Recommended Textbooks
Precalculus with Limits
Precalculus
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD