TI-89 for LP (linear programming)

Can I use TI-89 to get the answer of linear programming, the example is below. I want to get the max value of Z with the 3 constrains

example:

Maximize Z = 5X1+4X2
subject to
(1) X1 + X2 <= 5
(2)10X1+ 6X2 <= 45
(3)X1, X2 >= 0

hsuyfAsked:
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WelkinMazeCommented:
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hsuyfAuthor Commented:
Hi, it looks need some procedures. is there any other simple way to slove this problem?

thanks a lot
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WelkinMazeCommented:
I'm not very familiar with LP and not familiar at all with TI-89 but isn't the simplex method simple enough?
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hsuyfAuthor Commented:
download "simplex2 " and install to Ti-89, is much easy to use .

http://62.65.69.4/archives/files/fileinfo/137/13712.html 
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WelkinMazeCommented:
Hello,
I think that my initial posting answers the initial question (even answers it at 100% the way question is asked).
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