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Population of the world was 5.7 billion in 1995 and the observed growth rate was 2% per year. By what year will the population triple?
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Population of the world was 5.7 billion in 1995 and the observed growth rate was 2% per year. By what year will the population triple?

User Themaestro
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f(t) = a(1.02)t 11.4 = 5.7(1.02)t2 = 1.02tln 2 ≈ t ln 1.020.693 ≈ 0.0198 t35 = t
User Nick Rempel
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