Exponential-and-logarithmic-functions/429148: Carbon dioxide is a greenhouse
gas in the atmosphere that may raise average temperatures
on Earth. The burning of fossil fuels could be
responsible for the increased levels of carbon dioxide. If
current trends continue, future concentrations of atmospheric
carbon dioxide in parts per million (ppm) could
reach the levels shown in the accompanying table. The
concentration in the year 2000 was greater than it
had been at any time in the previous 160,000 years.
CO2
sCO2d (a) Let x be in years, where corresponds to
2000, to 2001, and so on. Find values for
C and a so that models the data.
(b) Graph f and the data in the same viewing rectangle.
(c) Use to estimate graphically the year when
the carbon dioxide concentration will be double
the preindustrial level of 280 ppm.
Table used:
Year 2000 2050 2100 2150 2200
CO2 (ppm) 364 467 600 769 987
1 solutions
Answer 310966 by nmo9772(2)   on 2011-05-21 14:35:09 (Show Source):
|
New!
Get regular updates about newly solved problems
via algebra.com's RSS system.