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heathernelly

  • 3 years ago

PLEASE HELP!! matrix

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  1. heathernelly
    • 3 years ago
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  2. heathernelly
    • 3 years ago
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    @jim_thompson5910 do you know how to do this? :)

  3. heathernelly
    • 3 years ago
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    @Luis_Rivera can you help me pleasee

  4. nubeer
    • 3 years ago
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    you have to find the X matrix right?

  5. heathernelly
    • 3 years ago
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    hmm i'm not sure

  6. heathernelly
    • 3 years ago
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    do you want me to tell you the choices?

  7. nubeer
    • 3 years ago
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    umm ok..

  8. heathernelly
    • 3 years ago
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  9. heathernelly
    • 3 years ago
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  10. heathernelly
    • 3 years ago
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  11. heathernelly
    • 3 years ago
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  12. jim_thompson5910
    • 3 years ago
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    |dw:1366763725969:dw|

  13. jim_thompson5910
    • 3 years ago
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    first multiply the scalar 2 by the matrix 2 -8 -4 2 to get 2*2 -8*2 -4*2 2*2 4 -16 -8 4 so we now have this |dw:1366763853215:dw|

  14. jim_thompson5910
    • 3 years ago
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    your next step is to subtract this matrix you just got from both sides |dw:1366763918364:dw|

  15. jim_thompson5910
    • 3 years ago
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    doing that will cancel out these matrices on the left side |dw:1366763994359:dw| since they add or subtract to the zero matrix

  16. jim_thompson5910
    • 3 years ago
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    so this is what we have now |dw:1366764038495:dw|

  17. jim_thompson5910
    • 3 years ago
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    I'll let you finish up

  18. heathernelly
    • 3 years ago
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    thank you soooo much!!!! i understand now :)

  19. jim_thompson5910
    • 3 years ago
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    ok great, tell me what you get for the matrix X

  20. heathernelly
    • 3 years ago
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    was just finishing up stuff, but i got 0 5 5 -6

  21. jim_thompson5910
    • 3 years ago
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    you nailed it, nice work

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