Saturday
April 19, 2014

Homework Help: Math

Posted by alice on Sunday, December 2, 2012 at 11:29am.

Could someone explain how to find which months during the year the maximum/minimum points occur for this problem occurs? I think it's around May and Oct, but I don't get how to determine that on the graph

The National Oceanic and Atmospheric Administration (NOAA) has been measuring atmospheric
carbon dioxide concentations (in parts per million) at Mauna Loa, Hawaii since 1958. The data
closely follow the pattern H(t) = 0.013t2 + 0.81t + 316 + 3.5 sin 2πt, where t = 0 represents the
year 1960. (Complete dataset available at ftp://ftp.cmdl.noaa.gov/ccg/co2/trends/c

1. Explore the CO2 concentration model for the period 1960 1962.

a) Graph H for 0 ≤ t ≤ 3 and 300 ≤ H ≤ 340

d) When during the year do the maximum and minimum occur?

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