mausterioJoin Date: 2009-11-25
Post Count: 378 |
If the equation -x^2 + 2(a+2)x - 9a = 0 What are the values of a? |
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arundelJoin Date: 2008-04-21
Post Count: 5762 |
It should be a downward opening parabola. |
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mausterioJoin Date: 2009-11-25
Post Count: 378 |
Nope its correct. No its not pie. |
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mausterioJoin Date: 2009-11-25
Post Count: 378 |
>_< This is almost impossible. I actually had a computer program try to do this and it didnt work. So i had to sit down and do it. It took 5 hours for me to make this up and check it 4 times. |
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EspithelJoin Date: 2009-10-09
Post Count: 20917 |
random guess: 6. |
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mausterioJoin Date: 2009-11-25
Post Count: 378 |
nope |
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EspithelJoin Date: 2009-10-09
Post Count: 20917 |
any number under 9000.
i win. |
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neongoo51Join Date: 2009-05-12
Post Count: 33061 |
7, I guess. |
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larry5444Join Date: 2007-12-14
Post Count: 12624 |
You can't permanenly solve a 2-variable equation
a + 4 = 8
well, a has to be 4. the only number you can add four to to make 8 is four itself.
a + b = 8
this however has Infinite solutions
0 and 8
1 and 7
2 and 6
3 and 5
4 and 4
5 and 3
6 and 2
7 and 1
8 and 0
9 and -1
10 and -2
11 and -3
12 and -4
13 and -5
See what I mean?
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what 9000 thats impossibal lol |
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4!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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mausterioJoin Date: 2009-11-25
Post Count: 378 |
actually there is a single answer. |
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AlarixJoin Date: 2010-11-20
Post Count: 12349 |
First i need to know what ^ stands for. |
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AlarixJoin Date: 2010-11-20
Post Count: 12349 |
Ok, it eather does not work or it is this: a=x/3.5+4/7 If thats not it then this equatio0n does not work in the mathamatical world. |
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MarvelzJoin Date: 2009-03-17
Post Count: 5461 |
Pi? |
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Not enough information. Value of X is needed. |
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mausterioJoin Date: 2009-11-25
Post Count: 378 |
Still no correct answer. Hint: If you try to do this in a calculator it is wrong. This is 2 complicated for a machine to figure it out. |
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Of course it is. The calculator needs the values of the variables. A calculator (even a TI-Nspire or something like that) can't solve for variables without guess-&-check methods.
However, if X=1, then A=0.4285something. I don't feel like figuring the exact figure out at the moment. |
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Chibi12Join Date: 2009-10-20
Post Count: 2110 |
I guess a=9. I looked it up on google. I think I'm right. |
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