anonymous
  • anonymous
The number A of tablet complrters sold (in millions) can be modeled by the functionA : 4.5t2 + 43.5t * 17, where /represents the year after 2010. A . In what year did the tablet computer sales reach 65 million? B . F'ind the average rate of change from 2010 to 2012 and interpret the meaning in the context of the situation. C . Do you think this model will be accurate after a new, innovative computer is developed? Explain.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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freckles
  • freckles
So you want to know when A=65 solve the equation 65=4.5t^2+43.5t*17 (if that is the right equation; kind of wonder if you meant to put +17 at then end instead of *17)
freckles
  • freckles
for B evaluate: \[\frac{f(2)-f(0)}{2-0} \\ \text{ since } t=2 \text{ actually means 2 years after 2010 which is the year 2012}\\ \text{ and since } t=0 \text{ means the year 2010}\]
anonymous
  • anonymous
I substitute a = 65 I solve t=1 Then 1+ 2010 = 2011 ?

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freckles
  • freckles
right I don't think they care about what happened before 2010... you know because you do get also t=-10.6667 as a solution
freckles
  • freckles
which I would take that to mean like little more 10 years before but like I said I don't think they care about what happens before
anonymous
  • anonymous
how I do B?
freckles
  • freckles
oops those f were suppose to be A's
freckles
  • freckles
sorry evaluate: \[\frac{A(2)-A(0)}{2-0}\] there does that make more sense ?
freckles
  • freckles
That is the average rate of change of A from the year 2010 to 2012 (aka t=0 to t=2)
anonymous
  • anonymous
ok I see
anonymous
  • anonymous
hanks
freckles
  • freckles
np
anonymous
  • anonymous
C?
freckles
  • freckles
C) I don't know...The economy is always changing...But I think they are making computers cheaper... There will be more people. Some people will be fine with their old computer and won't think it necessary to purchase another computer.
anonymous
  • anonymous
Thanks
freckles
  • freckles
That question might require some research.
freckles
  • freckles
For example I don't even know if the function they gave is a great model currently for any computer type available without doing any research.
anonymous
  • anonymous
ok, I will try search for C, Thanks
freckles
  • freckles
what do you think @dan815
anonymous
  • anonymous
I no idea I have to go , thanks bye
dan815
  • dan815
sry i wasnt here

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