Answer:

The world population at the beginning of 2019 will be of 7.45 billion people.
Step-by-step explanation:
The world population can be modeled by the following equation.

In which Q(t) is the population in t years after 1980, in billions, Q(0) is the initial population and r is the growth rate.
The world population at the beginning of 1980 was 4.5 billion. Assuming that the population continued to grow at the rate of approximately 1.3%/year.
This means that 
So


What will the world population be at the beginning of 2019 ?
2019 - 1980 = 39. So this is Q(39).


The world population at the beginning of 2019 will be of 7.45 billion people.
Answer:
120 sq. units
plus them all and add 100
18 inches sqa-wared. "Nailed it!"
Answer:
p=2
Step-by-step explanation:
so how to find this u take the five and three and u subtract them both and whatever is left over that is your answer
Answer:
5,308
Step-by-step explanation: