The number of people living in a country is increasing each year exponentially so that the number of people 5 years ago was 4 million. the number of people in five years time is projected to be 6.25 million. what is the present population of the country?

You could attempt doing a log mean.

If your population was growing linearly, you could simply do:

Y2=6.25million, Y1=4million

This would work since you are right in the middle of a straight line.

However, since your population is growing exponentially, you would take a log mean, which would look like this:

This will give you the middle number with respect to an exponential curve. This would only work because the time difference is 5 years in both directions, so if the time difference was not equal in both directions, you'd have to develop an exponential equation that would fit your data.

the area of the rectangle is 35units^2.

step-by-step explanation:

graph it and find the distance.

it is a 5*7 rectangle.

therefore the area is 35units^2.