City water, which is slightly chlorinated, is being used to flush a tank of heavily chlorinated water. The concentration C = C(t) of the chlorine in the tank t hours after flushing begins is given by the following formula. C = 0.3 + 2.76e.37 milligrams per gallon (a) What is the initial concentration of ch lorine in the tank? mg/gal (b) Express the concentration of chlorine in the tank after 8 hours using functional notation. 3.06 C 8 ) Calculate the concentration of chlorine in the tank after 8 hours. (Round your answer to two decimal places.) x mg/gal

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter7: Exponents And Exponential Functions
Section7.5: Exponential Functions
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City water, which is slightly chlorinated, is being used to flush a tank of heavily chlorinated water. The concentration C = C(t) of
the chlorine in the tank t hours after flushing begins is given by the following formula.
C = 0.3 + 2.76e.37 milligrams per gallon
(a) What is the initial concentration of ch lorine in the tank?
mg/gal (b) Express the concentration of chlorine in the tank after 8 hours using functional notation.
3.06
C 8
)
Calculate the concentration of chlorine in the tank after 8 hours. (Round your answer to two decimal places.)
x mg/gal
Transcribed Image Text:City water, which is slightly chlorinated, is being used to flush a tank of heavily chlorinated water. The concentration C = C(t) of the chlorine in the tank t hours after flushing begins is given by the following formula. C = 0.3 + 2.76e.37 milligrams per gallon (a) What is the initial concentration of ch lorine in the tank? mg/gal (b) Express the concentration of chlorine in the tank after 8 hours using functional notation. 3.06 C 8 ) Calculate the concentration of chlorine in the tank after 8 hours. (Round your answer to two decimal places.) x mg/gal
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