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Exponential growth and decay — Homework
Set up the formula with each letter clearly identified before computing.
- 1.You invest $2500 at 4% annual interest compounded annually. Find the balance after 5 years using A=P(1+r)^t.
- 2.A population of 500 bacteria triples every 6 hours. Write the model and find the population after 18 hours.
- 3.A radioactive sample of 60g has a half-life of 8 years. How much remains after 24 years?
- 4.Is the bacteria growth in problem 2 growth or decay? What tells you?
- 5.In the half-life formula, why does the exponent use elapsed time divided by the half-life, rather than just the elapsed time?
🌲 Homeschool of the FutureEleventh Grade · Math · week 26 homework