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Rae<3Rae

  • 3 years ago

.Figure ABCD is a rectangle. The length of segment AE is (5x - 7) units and the length of segment EC is (2x - 1) units. What is the length of diagonal BD

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  1. Rae<3Rae
    • 3 years ago
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    no answeres i just want to know how to do it 8 units 6 units 12 units 10 units

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  2. dpaInc
    • 3 years ago
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    since this is a rectangle, we know the diagnols bisect each other. i.e., 5x-7 = 2x -1 solve for x here and to get the length of the diagnol, plug x into 2(2x-1). and that will be your answer.

  3. Rae<3Rae
    • 3 years ago
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    kk thanks i will work it out but i might post it so that i can know if i am right or not

  4. dpaInc
    • 3 years ago
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    k.. did you get x= ?

  5. Rae<3Rae
    • 3 years ago
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    not yet hold on

  6. dpaInc
    • 3 years ago
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    yep..

  7. Rae<3Rae
    • 3 years ago
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    i got 10 units for the answer

  8. dpaInc
    • 3 years ago
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    hmmm. what did u get for x?

  9. Rae<3Rae
    • 3 years ago
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    3

  10. dpaInc
    • 3 years ago
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    i got x=2...

  11. dpaInc
    • 3 years ago
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    5x-7 = 2x -1 subtract 2x from both sides 5x - 2x - 7 = 2x - 2x - 1 3x - 7 = -1 add 7 to both sides 3x - 7 + 7 = -1 + 7 3x = 6 x = 2

  12. Rae<3Rae
    • 3 years ago
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    o okay i see what i did wrong thatnks alot

  13. dpaInc
    • 3 years ago
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    yw.. :) thanks for working the problem with me...:)

  14. Rae<3Rae
    • 3 years ago
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    np:D

  15. dpaInc
    • 3 years ago
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    :) just to be clear, length of the diagnol is 6 right?

  16. Rae<3Rae
    • 3 years ago
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    yeppers thanks for showing me how to do it do :D

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