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Invisiblewowitch420
whippits n ribs
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Registered: 04/22/08
Posts: 5,982
Loc: 512 TX
Re: which would do you prefer? [Re: Picklez]
    #157242 - 12/07/08 05:45 PM (15 years, 3 months ago)

god i hate math more than meth


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        heady nugz

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OfflineCoaster
I'm Back Baby
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Registered: 04/23/08
Posts: 25,306
Loc: Sativa Central Flag
Last seen: 12 years, 10 months
Re: which would do you prefer? [Re: wowitch420]
    #157244 - 12/07/08 05:46 PM (15 years, 3 months ago)

math is key to having a good head on ur shoulders
if u can master math then u can master anything


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Invisiblemhbound
Ballin out at all cost
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Registered: 09/22/08
Posts: 8,144
Loc: High Flag
Re: which would do you prefer? [Re: Picklez]
    #157245 - 12/07/08 05:47 PM (15 years, 3 months ago)

Coaster send me some cid, and would like a few bags of heroin also. I heard you got someone some the other day.


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Suck my balls America

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Invisiblewowitch420
whippits n ribs
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Registered: 04/22/08
Posts: 5,982
Loc: 512 TX
Re: which would do you prefer? [Re: Coaster]
    #157246 - 12/07/08 05:48 PM (15 years, 3 months ago)

math sucks and you know it.


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        heady nugz

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OfflinePicklez
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Registered: 04/20/08
Posts: 17,919
Last seen: 9 years, 8 months
Re: which would do you prefer? [Re: Coaster]
    #157247 - 12/07/08 05:50 PM (15 years, 3 months ago)

Quote:

Coaster said:
math is key to having a good head on ur shoulders
if u can master math then u can master anything




average rate of change for 3-x^2 from x=-1 to x=3

I tried just evaluating them both at x=-1 and x=3 I dont think that is right

when x=-1 the resulting answer is 2
when x=3 the answer is -6

The answer on the answer key is rate of change of -2

Thanks again, I will try to figure out the rest on my own or save them until another day :tongue:

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InvisibleStonethM
D.I.L.L.I.G.A.F.
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Registered: 10/06/08
Posts: 24,971
Loc: No where ville, USA Flag
Re: which would do you prefer? [Re: Coaster]
    #157248 - 12/07/08 05:50 PM (15 years, 3 months ago)

Thats right. Math the perfect subject.


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:getstoned:

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OfflineCoaster
I'm Back Baby
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Registered: 04/23/08
Posts: 25,306
Loc: Sativa Central Flag
Last seen: 12 years, 10 months
Re: which would do you prefer? [Re: Stoneth]
    #157249 - 12/07/08 05:57 PM (15 years, 3 months ago)

f(x)=-x^2+3
f'(x)=-2x
f'(-1)=2
f'(3)=-6
(f'(-1)+f'(3))/2=-4/2=-2


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InvisibleStonethM
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Registered: 10/06/08
Posts: 24,971
Loc: No where ville, USA Flag
Re: which would do you prefer? [Re: Coaster]
    #157254 - 12/07/08 06:03 PM (15 years, 3 months ago)

If u say so I work with the easy numbers.
Too many yrs away from school.
All I need is squared feet and cubic feet there right.


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:getstoned:

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OfflinePicklez
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Re: which would do you prefer? [Re: Coaster]
    #157256 - 12/07/08 06:06 PM (15 years, 3 months ago)

Quote:

Coaster said:
f(x)=-x^2+3
f'(x)=-2x
f'(-1)=2
f'(3)=-6
(f'(-1)+f'(3))/2=-4/2=-2




how did you get:
f'(x)=-2x

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OfflineCoaster
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Registered: 04/23/08
Posts: 25,306
Loc: Sativa Central Flag
Last seen: 12 years, 10 months
Re: which would do you prefer? [Re: Picklez]
    #157263 - 12/07/08 06:15 PM (15 years, 3 months ago)

take the derivative


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OfflinePicklez
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Re: which would do you prefer? [Re: Coaster]
    #157275 - 12/07/08 06:22 PM (15 years, 3 months ago)

Quote:

Coaster said:
take the derivative




uhh the what? :confused:

im going to have to study my ass off to get the B I want :crazy2:

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OfflineCoaster
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Registered: 04/23/08
Posts: 25,306
Loc: Sativa Central Flag
Last seen: 12 years, 10 months
Re: which would do you prefer? [Re: Picklez]
    #157280 - 12/07/08 06:26 PM (15 years, 3 months ago)

all u gotta do is find f(x+h)-f(x)/h at each of the endpoints as h goes to zero
then average the 2 #s


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InvisibleHefe

Registered: 04/21/08
Posts: 1,623
Re: which would do you prefer? [Re: Coaster]
    #157381 - 12/07/08 08:09 PM (15 years, 3 months ago)

2+(-6)=(-4)/2=2?

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OfflinePicklez
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Re: which would do you prefer? [Re: Hefe]
    #157539 - 12/07/08 09:20 PM (15 years, 3 months ago)

Quote:

Hefe said:
2+(-6)=(-4)/2=2?




He put -2, I understand it now. Just plug in both the answers and average them. Seems simple enough

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