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Select all solutions to .
In a pond, the area that is covered by algae doubles each week. When the algae is first spotted, the area it covered is about 12.5 square meters.
The function , defined by , represents the mass of material left, in milligrams, hours after it is measured.
The area covered by a lake is 11 square kilometers. It is decreasing exponentially at a rate of 2 percent each year and can be modeled by .
A sequence of numbers is increasing exponentially. Write the first two numbers of the sequence.
The population of a city in thousands is modeled by the function , where is the number of years after 1950. Which of these statements are true for the model? Select all that apply.
The population in 1950 was 250.
The population in 1950 was 250,000.
The population grows by 1 percent each year.
The population in 1951 was 275,000.
The population grows exponentially.
