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 cần 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 500sxs 800 is the amount of carbon monoxide present in the air in parts per million (ppm). a) What is the exposure time when x = 640? %3D b) Estimate the concentration of CO necessary to produce a coma in 8 hr. ..... What is the exposure time when x = 640? 7.58 hr (Round to the nearest tenth as needed.) or ols Estimate the approximate concentration of CO necessary to produce a coma in 8 hr. ppm (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 cần 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 500sxs 800 is the amount of carbon monoxide present in the air in parts per million (ppm). a) What is the exposure time when x = 640? %3D b) Estimate the concentration of CO necessary to produce a coma in 8 hr. ..... What is the exposure time when x = 640? 7.58 hr (Round to the nearest tenth as needed.) or ols Estimate the approximate concentration of CO necessary to produce a coma in 8 hr. ppm (Round to the nearest tenth as needed.)
Algebra and Trigonometry (6th Edition)
6th Edition
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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![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
cần 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 500sxs 800 is the
amount of carbon monoxide present in the air in parts per million (ppm).
a) What is the exposure time when x = 640?
b) Estimate the concentration of CO necessary to produce a coma in 8 hr.
What is the exposure time when x = 640?
7.58 hr
(Round to the nearest tenth as needed.)
ols
Estimate the approximate concentration of CO necessary to produce a coma in 8 hr.
O ppm
(Round to the nearest tenth as needed.)
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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
cần 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 500sxs 800 is the
amount of carbon monoxide present in the air in parts per million (ppm).
a) What is the exposure time when x = 640?
b) Estimate the concentration of CO necessary to produce a coma in 8 hr.
What is the exposure time when x = 640?
7.58 hr
(Round to the nearest tenth as needed.)
ols
Estimate the approximate concentration of CO necessary to produce a coma in 8 hr.
O ppm
(Round to the nearest tenth as needed.)
Help Me Solve This
View an Example
Get More Help -
Clear All
Check Answer
回可
DII
@
#3
2$
&
3
4.
8.
9.
e
r
u
i
d
f
h
j
k
V
m
.. ..
>
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