a sequence is a function whose domain is the set of natural numbers.
natural numbers are all the negative and positive integers
True
work: f(3)=2(3)-9
f(3)=6-9
f(3)=-3
Answer:
x=-10
Step-by-step explanation:
Answer: Option B is correct
The expression to estimate the population of the country in 2005 is given by

Step-by-step explanation:
Since we have given that
In 1985, there was population of 145 millions.
Similarly,
In 1995, there was a population of 190 million .
Use the formula,

where A denotes the initial population and t denotes the number of years.
So, the expression becomes

∵ time period between 1985 to 2005 is 20 years.
So we take t=20 years.
So, the expression to estimate the population of the country in 2005 is given by
