Question

Assume that the population of the world in 2010 was 6.9 billions and is growing at the rate of 1.1 percent a year. (a) set up a recurrence relation for the population of the world n years after 2010 (b) find an explicit formula for the population of the world n years after 2010. (c) what will the population of the world be in 2030

Answer 1

a 1=6.9

a an =

(an-1)(1.1)

b an=

(6.9)

(1.1^n-1)

c

46.419

billion

Explanation:

Answer 2

a1=6.9
a) an=(an-1)(1.1)
b) an=(6.9)(1.1^n-1)
c) 46.419 billion