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Math Help - inequalities

  1. #1
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    inequalities

    1. pic 10. what are the possible values of x?

    A. 11.5 < x
    B. -7 < x < 23
    C. -3.5 < x < 23.5
    D. -3.5 < x < 11.5

    2. Pic 11. What are the possible values for x?

    A. x > 3.75
    B. x < 2.5
    C. 0 < x < 2.5
    D. 2.5 < x < 3.75

    3. Pic 12. What are the possible values of x?

    A. -12 < x < 12
    B. 12 < x < 30
    C. -12 > x > 30
    D. x > 30


    4. . Pic 16. Two boats start at the dock. The first sails 4 miles due west, then turns 46 degrees toward south and sails 1.8 miles. The second sails 4 miles due east, then turns 58 degrees toward north and sails 1.8 miles. Which boat is father from the dock?
    Attached Thumbnails Attached Thumbnails inequalities-pic-10.jpeg   inequalities-pic-11.jpeg   inequalities-pic-12.jpeg   inequalities-pic-16.jpeg  
    Last edited by dgenerationx2; November 20th 2008 at 08:40 AM. Reason: forgot pics
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  2. #2
    MHF Contributor
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    Triangle Inequalities

    (2x+10)+(4x) > (6x-20)
    (6x-20)+(2x+10) > (4x)
    (4x)+(6x-20) > (2x+10)

    Now what?
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  3. #3
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    that doesn't help. please solve. help
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