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Tabbiejack

  • 2 years ago

Which ordered pair is a solution of the inequality? y≥4x - 5 A. (3, 4) B. (2, 1) C. (3, 0) D. (1, 1)

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  1. jim_thompson5910
    • 2 years ago
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    plug each point into the inequality if you get a true inequality, then that point is in the solution set

  2. jim_thompson5910
    • 2 years ago
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    for example, let's check choice A y≥4x - 5 4≥4*3 - 5 4≥12 - 5 4≥7 which is FALSE, so (3, 4) is NOT a solution So choice A is out

  3. Tabbiejack
    • 2 years ago
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    ok I suck at this really bad

  4. jonsysibye
    • 2 years ago
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    |dw:1367555610977:dw| it would be all points on that line as well as all points above the line I believe

  5. jim_thompson5910
    • 2 years ago
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    well just practice practice practice and you'll get better

  6. Tabbiejack
    • 2 years ago
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    I am a mom trying to help my 13yr old

  7. Tabbiejack
    • 2 years ago
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    What is the answer?

  8. jim_thompson5910
    • 2 years ago
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    follow the steps I did to check choice A to check the other choices

  9. jim_thompson5910
    • 2 years ago
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    you're looking for an inequality that's true when you plug in the given point

  10. jonsysibye
    • 2 years ago
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    well good luck I am pretty sure that the teacher will want the line thing I'm not sure it depends on what was taught but the answers will be D

  11. Tabbiejack
    • 2 years ago
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    I don't tell the answers I just check to know if her work is right I have a degree but I have done this in years.

  12. jonsysibye
    • 2 years ago
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    The answer should be D because \[1\ge4(1)-5\]

  13. Tabbiejack
    • 2 years ago
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    are you sure you got C

  14. Tabbiejack
    • 2 years ago
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    she got C

  15. jonsysibye
    • 2 years ago
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    when you use c you get \[0\ge4(3)-5\] \[0\ge7\] Which isn't true so I am pretty positive it is D

  16. Tabbiejack
    • 2 years ago
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    Thanks she just puts anything down...

  17. jonsysibye
    • 2 years ago
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    No problem I'm glad I could help

  18. Tabbiejack
    • 2 years ago
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    A. (3, 4) B. (2, 1) C. (3, 0) D. (1, 1)

  19. Tabbiejack
    • 2 years ago
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    so D

  20. jonsysibye
    • 2 years ago
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    Yes D

  21. Tabbiejack
    • 2 years ago
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    I have another question she go 2 more wrong can I trouble you?

  22. jonsysibye
    • 2 years ago
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    go right ahead

  23. Tabbiejack
    • 2 years ago
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    How many solutions does the system have? x = -4y + 4 2x + 8y = 8 A. one solution B. two solutions C. infinitely many solutions D. no solution

  24. jonsysibye
    • 2 years ago
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    it should be infinitely many because if you put them into slope intercept form they are the same line

  25. Tabbiejack
    • 2 years ago
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    so c

  26. jonsysibye
    • 2 years ago
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    Yes

  27. Tabbiejack
    • 2 years ago
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    ok last 1

  28. jonsysibye
    • 2 years ago
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    I'm ready

  29. Tabbiejack
    • 2 years ago
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    The local zoo has two water tanks for the elephant exhibit that are leaking One water tank contains 12 gal of water and is leaking at a constant rate of 3 gal/h. The second water tank contains 8 gal of water and is leaking at a constant rate of 5 gal/h. When will the two tanks have the same amount of water? Explain. Let x = the number of hours the tanks are filling and let y = the number of gallons in the tank. A. In 2 hours, because the solution to the system is (2,18). B. They will never have the same amount of water because the solution to the system is (–2,18). It is not possible to have time be –2 hours. C. In –2 hours, because the solution to the system is (–2,18). D. They will never have the same amount of water because the solution to the system is (–2,18). It is not possible to have –2 gallons in the tanks.

  30. jonsysibye
    • 2 years ago
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    |dw:1367556917704:dw| the answer is B because we can't have negative time

  31. Tabbiejack
    • 2 years ago
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    you are a gem

  32. Tabbiejack
    • 2 years ago
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    I will open another so a can give another medal

  33. Tabbiejack
    • 2 years ago
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    I will open another so a can give another medal

  34. jonsysibye
    • 2 years ago
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    Thank you

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