High concentrations of carbon monoxide CO can cause coma and possible death. The time required for a person to reach a COHb level capable of causing a coma can be approximated by the quadratic model T=.0002x²-316x+127.9, where T is the exposure time in hours necessary to reach this level and 500 ≤x≤ 800 is the amount of carbon monoxide present in the air in parts per million (ppm). a) What is the exposure time when x=670? b) Estimate the concentration of CO necessary to produce a coma in 5 hr. What is the exposure time when x = 670? hr (Round to the nearest tenth as needed.)
High concentrations of carbon monoxide CO can cause coma and possible death. The time required for a person to reach a COHb level capable of causing a coma can be approximated by the quadratic model T=.0002x²-316x+127.9, where T is the exposure time in hours necessary to reach this level and 500 ≤x≤ 800 is the amount of carbon monoxide present in the air in parts per million (ppm). a) What is the exposure time when x=670? b) Estimate the concentration of CO necessary to produce a coma in 5 hr. What is the exposure time when x = 670? hr (Round to the nearest tenth as needed.)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Transcribed Image Text:High concentrations of carbon monoxide CO can cause coma and possible death. The time required for a person to
reach a COHb level capable of causing a coma can be approximated by the quadratic model
T=.0002x²-316x+127.9, where T is the exposure time in hours necessary to reach this level and 500 ≤x≤ 800 is
the amount of carbon monoxide present in the air in parts per million (ppm).
a) What is the exposure time when x=670?
b) Estimate the concentration of CO necessary to produce a coma in 5 hr.
What is the exposure time when x = 670?
hr
(Round to the nearest tenth as needed.).
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