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Please help on my question I have the graph part done, I need help on the other parts

Please Help On My Question I Have The Graph Part Done I Need Help On The Other Parts class=

Sagot :

the Here the equation of amount of salt in the barrel at time t is given by

[tex]Q(t)=21(1-e^{-0.06t})[/tex]

a

At time t=7 minute the amount of salt will be

[tex]Q(7)=21(1-e^{-0.06\times7})\Rightarrow Q(7)=21\times0.342953\Rightarrow Q(7)=7.20[/tex]

The amount of salt after 7 min will be 7.20lb.

b

At time t=14minute the amount of salt will be

[tex]Q(14)=21(1-e^{-0.06\times14})\Rightarrow Q(14)=11.93[/tex]

Amount of salt will be 11.93 lb

d

From the graph, for large t the value Q(t) the amount of salt approaches to 21 lb.

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