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The number of DVDs sold at Bob's store can be modeled by
the function N (t) = 4t + 3 and the price per DVD can be
modeled by the function P(t) = =12 – 2t + 7.2, where t is
the number of years since 2002.
According to this model, what is the total amount of revenue
generated by Bob's DVD sales in the year 2010?
$
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The number of DVDs sold at Bobs store can be modeled by the function N t 4t 3 and the price per DVD can be modeled by the function Pt 12 2t 72 where t is the nu class=

Respuesta :

sqdancefan

Answer:

  588

Step-by-step explanation:

Given

  [tex]N(t)=4t+3\\\\P(t)=\dfrac{2}{5}t^2-2t+7.2[/tex]

Find

  Revenue in year 8

Solution

  R(t) = N(t)·P(t)

  R(8) = N(8)·P(8) = (4·8 +3)(((2/5)8 -2)8 +7.2)

  = (35)((3.2 -2)8 +7.2) = 35(9.6 +7.2) = 588

Bob's DVD sales generated revenue of 588 in 2010.

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