How long will it take for the population of a certain country to double is its annual growth rate is 5.3%?

It will take approximately 20 years ( years) for the population of a certain country to double if its annual growth rate is 5.3%.

Step-by-step explanation:

Then the population after years is:

Let be the current population.

would be the double this population.

The growth rate is

so the value of can be determined as:

years

Therefore, it will take approximately 20 years for the population of a certain country to double if its annual growth rate is 5.3%.

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2