Answer:
The population in 2011 will be of 34.88 million people.
Step-by-step explanation:
The population after t years is modeled by an exponential function is the following format:
In which P(0) is the initial population and r is the growth rate.
At the beginning of 1990, 21.7 million people lived in the metropolitan area of a particular city.
This means that
The 1998 population was 26 million.
1998 is 8 years after 1990. So
We use this to find the value of r.
So
If this trend continues, how large will the population be in the year 2011?
2011 is 21 years after 1990. So this is P(21).
The population in 2011 will be of 34.88 million people.
Answer:
The better buy is to buy 10 kilograms of potatoes at $ 3.92, since each kilogram costs $ 0.392.
Step-by-step explanation:
To find the cost per unit in each case and then state which is the better buy, the following calculations must be performed:
6kg of potatoes for $ 2.45:
2.45 / 6 = 0.408
15 kg of potatoes for $ 5.9:
5.90 / 15 = 0.393
10 kg of potatoes for $ 3.92:
3.92 / 10 = 0.392
Thus, the better buy is to buy 10 kilograms of potatoes at $ 3.92, since each kilogram costs $ 0.392.
The answer is for the domain is B
Answer:
Infinite decimals that do not repeat.
Step-by-step explanation:
Repeating decimals can be as fractions where the top and bottom are integers.
Examples: .3333333333333333333333333333333.... can be written as 1/3.
or .19191919191919191919..... can be written as 19/99.
Terminating decimals can also be written as fractions where the top and bottom are integers.
Examples: .11=11/100 or .161=161/1000
Any number that can be written as a fraction where the top and bottom are integers (bottom integer not 0)
is a rational number.
Repeating decimals are infinite. So what I think they mean by infinite here is numbers like or . There are not rational. They cannot be written as a fraction where the top and bottom are integers.