Exponential Growth and Decay Mastery Check

Front

Equation to use for a yacht losing 12.5% of its value each year. Initial value: $150,000, Time: 6 years.

Back

Front

Equation to use for half-life problem: Initial: 195g, After 10 days: 183g

Back

Front

Equation to use for growth rate of algae: 5 years ago: 243 parts/unit, now: 371 parts/unit.

Back

Front

Back

Front

Back

Front

Angel put $15,000 into a high yield savings account with an annual interest rate of 4.35%. At the end of the term the account balance is $20,208.70. How long was the money saved? Round your answer to the nearest year.

Back

7

Front

A lamborghini loses 15.75% of its value each year. What is the value of a $250,000 car after 4 years?

Back

$125,956.23

Front

An invasive species of aquatic algae has been tracked in Texas lakes. 5 years ago a study found there it be 243 parts per unit with a current study showing there to be 371 parts per unit. What is the growth rate of this specific species of algae?

Round answer to 2 decimal places

Back

8.83, 8.83%

Front

A strain of E. coli doubles every 17 minutes. After 3 hours the sample contains 24,890 E. coli cells. How many cells were in the initial sample?

Back

180

Front

A strain of E. coli doubles every 17 minutes. After 3 hours the sample contains 24,890 E. coli cells. How many cells were in the initial sample?

Back

17