Half-life

Front

What is half-life?

Back

Half-life is the time required for half of a sample of a radioactive substance to decay or for a quantity to reduce to half its initial value.

Front

Write the exponential decay formula.

Back

Front

What is the half-life of Florine-21?

Back

The half-life of Florine-21 is 4 seconds.

Front

Write the exponential equation for Florine-21 after t seconds.

Back

Front

How do you calculate the population of yeast cells after t hours if they double every 4 hours?

Back

Front

What is the doubling time for a population of yeast cells?

Back

The doubling time for the yeast cells is 4 hours.

Front

If a city doubles its population every 64 years, what will be the population after 128 years?

Back

The population will be 900,000.

Front

What is the formula for exponential depreciation?

Back

Front

What is the depreciation rate of a car valued at $15,000?

Back

The depreciation rate of the car is 8% per year.

Front

Write the exponential equation for the depreciation of a car valued at $15,000.

Back