Estimates are that 11.6 x 106 m² of rainforest will be destroyed in two hours. Assuming that the initial area of tropical rainforests is 20 x 10¹2 m²: a. What is the exponential rate of rainforest destruction? b. If this rate is representative of the past and future and there were 24.5 x 10¹2 m² of rainforest in 1975, how much rainforest was left (in m²) in 2010? c. It is estimated that tropical rainforests remove or take-up 0.83 kg(C)/m²-year. How much less carbon [kg(C)] was removed in 2010 by rainforests compared to that removed in 1975?

Estimates are that 11.6 x 106 m² of rainforest will be destroyed in two hours. Assuming that the initial area of tropical rainforests is 20 x 10¹2 m²: a. What is the exponential rate of rainforest destruction? b. If this rate is representative of the past and future and there were 24.5 x 10¹2 m² of rainforest in 1975, how much rainforest was left (in m²) in 2010? c. It is estimated that tropical rainforests remove or take-up 0.83 kg(C)/m²-year. How much less carbon [kg(C)] was removed in 2010 by rainforests compared to that removed in 1975?

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter6: Exponential Functions And Sequences

Section: Chapter Questions

Problem 8CA

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3. Estimates are that 11.6 x 106 m2 of rainforest will be destroyed in two hours. Assuming that the initial area of tropical rainforests is 20 x 10^12 m^2:

What is the exponential rate of rainforest destruction?
If this rate is representative of the past and future and there were 24.5 x 1012 m2 of rainforest in 1975, how much rainforest was left (in m2) in 2010?
It is estimated that tropical rainforests remove or take-up 0.83 kg(C)/m2-year. How much less carbon [kg(C)] was removed in 2010 by rainforests compared to that removed in 1975?

Estimates are that 11.6 x 106 m² of rainforest will be destroyed in two hours. Assuming
that the initial area of tropical rainforests is 20 x 10¹2 m²:
a. What is the exponential rate of rainforest destruction?
b. If this rate is representative of the past and future and there were 24.5 x 10¹2 m² of
rainforest in 1975, how much rainforest was left (in m²) in 2010?
c. It is estimated that tropical rainforests remove or take-up 0.83 kg(C)/m²-year.
How much less carbon [kg(C)] was removed in 2010 by rainforests compared to
that removed in 1975?

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