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bixtya [17]
3 years ago
10

If the explicit formula for the sequence 14, 20, 26, 32, ... is ay = 6n + 8, find the 21st term:

Mathematics
1 answer:
Savatey [412]3 years ago
6 0
It is 6x because I had this in one Of my questions
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True

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abruzzese [7]

Answer:

V' = -0.11552 *V\\= -0.11552(1.8)\\ \\=-0.20794 million per year

Step-by-step explanation:

Given that oil is pumped continuously from a well at a rate proportional to the amount of oil left in the well. Initially there were 3 million barrels of oil in the well; six years later 1,500,000 barrels remain.

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V' =kV\\dv/V= kdt\\ln V = kt+C\\V = Ae^{kt}

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V(0) = A = 3 million

Hence V = 3e^{kt}

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V(t) = 3e^{-0.11552t}

a) Using the above value of k , we have

V' = -0.11552 *V\\= -0.11552(1.8)\\ \\=-0.20794 million per year.

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5 is greater than equal to 5. So f(5)=5+8=13

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