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25 votes
25 votes
Cement

For each year, the population of a forest of trees is
represented by A(t) = 115(1.025)' In a neighboring forest,
the population of the same type of tree is represented by
the function B(t) = 82(1.029)".
s
ments
5
Assuming the population growth models continue to
represent the growth of the forests, which forest will have a
greater number of trees after 20 years? By how many?

User Greeny
by
2.7k points

1 Answer

13 votes
13 votes

Answer: Forest A will have a greater tree population

Step-by-step explanation: The function for forest A is A(t)=115(1.025), which is the number of trees in one year, so a formula to calculate for t number of years could be: A(t) = 115(1.025)(t), and for B it could be B(t) = 82(1.029)(t).

t represents the number of years, so after 20 years the number of trees would be:

A(20) = 115(1.025)(20) = 2357.5

B(20) = 82(1.029)(20) = 1687.56

A(20 - B(20) => 2357.5 - 1687.56 = 669.94

Therefore, there would be a greater number of trees in Forest A after 20 years. It is greater than forest B by 669.94 trees.

User Leiba
by
2.8k points