anonymous
  • anonymous
quick computing company produces calculators they have found that the cost c(x) of making x calculators is a quadratic function in terms of x. The company also discovered that it costs $45.00 to produce two calculators $143 to produce four calculators $143 to produce four calculators and $869 to produce ten calculators. Find the cost of producing seven calculators
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Hey old school mate! I know you
anonymous
  • anonymous
You look familiar
anonymous
  • anonymous
lol that was a prank to get you started with a bit of funXD

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More answers

anonymous
  • anonymous
lol you look like a guy in my class
anonymous
  • anonymous
In question like this you need to start organizing the known values and keys that can lead to finding the final answer.
anonymous
  • anonymous
First you know that this is a quadratic equation we all know to be old school nostalgia
anonymous
  • anonymous
Ok since now that you know this is a quadratic function you find the coordinates to find in with other coordinates in the form of quadratic equation which has parabola and vertex just like your teacher's lesson
anonymous
  • anonymous
you need to assume that this is a quadratic equation and that all of the coordinates described conform with the shape of that parabola old school
anonymous
  • anonymous
You can either use your calculator to do it, just assign it to quadratic equation and enter the coordinates given. Or you can draw it on a cartesian plane to get the approximate amount.
anonymous
  • anonymous
Or you can go about calculating it by hand which would take a bit of trick ;) Let me know how it goes.
anonymous
  • anonymous
um.. what?
anonymous
  • anonymous
Good luck:)
anonymous
  • anonymous
math stands for mental abuse to humans;) and you are the participant;)
anonymous
  • anonymous
I have no clue how to do what you described above
anonymous
  • anonymous
Ok. Which part? I don't understand.
anonymous
  • anonymous
any of it
welshfella
  • welshfella
let c(x) = ax^2 + bx + c general form of a quadratic function from the data 45 = a(2)^2 + 2b + c 143 = a(4)^2+ 4b + c 869 = a(10^2 + 10b + c from this we can find values of a , b and c then plug in x = 7
welshfella
  • welshfella
so the system of equations is 4a + 2b + c = 45 16a + 4b + c = 143 100a + 10b + c = 869
welshfella
  • welshfella
looks a bit scary but they can be solved
welshfella
  • welshfella
if you subtract the first one from the second then 2nd from the third you will eliminate the c and get 2 equations in a and b
welshfella
  • welshfella
12a + 2b = 98 84a + 6b = 726
welshfella
  • welshfella
now multiply first equation by -3 and add -36a - 6b = -294 84a + 6b = 726 adding:- 48a = 432 a = 432/48 = 9 a = 9
welshfella
  • welshfella
I've found a now you can find b and c gotta go

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