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anonymous

  • 5 years ago

(x+16)(x-12)(x+2)>0

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  1. anonymous
    • 5 years ago
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    2x(8-6+1)>0

  2. anonymous
    • 5 years ago
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    (x>0)2(8-6+1)

  3. Mertsj
    • 5 years ago
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    Make a sign graph of the factors. Do you need me to demonstrate?

  4. anonymous
    • 5 years ago
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    I believe the answer would be all real numbers because if any negative numbers are used they would be less than 0, not greater than.

  5. Mertsj
    • 5 years ago
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    |dw:1327194029245:dw|

  6. Mertsj
    • 5 years ago
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    The chart shows that the factor x+16 is negative to the left of -16 and positive to the right.

  7. Mertsj
    • 5 years ago
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    Do you understand that?

  8. anonymous
    • 5 years ago
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    |dw:1327194152861:dw|

  9. Mertsj
    • 5 years ago
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    Ok, Walee, balaa wants to take over now. I'll let him explain it to you.

  10. anonymous
    • 5 years ago
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    |dw:1327194276321:dw|

  11. anonymous
    • 5 years ago
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    Ok so I don't have to multiply them at all?

  12. anonymous
    • 5 years ago
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    Yes

  13. anonymous
    • 5 years ago
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    Have you got it ?

  14. anonymous
    • 5 years ago
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    No, I do understand what is being said but I don't understand how.

  15. Mertsj
    • 5 years ago
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    Do you want me to explain it ?

  16. anonymous
    • 5 years ago
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    Yes, please. I don't multiply those three together?

  17. Mertsj
    • 5 years ago
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    In this problem you have three factors to multiply and the problem says that if you multiply them the result will be positive. Do you understand that?

  18. anonymous
    • 5 years ago
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    Isk that because it has to be > 0?

  19. Mertsj
    • 5 years ago
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    Yes

  20. Mertsj
    • 5 years ago
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    And no you don't multiply them together.

  21. anonymous
    • 5 years ago
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    One of the choices of answers I had was all natural numbers. Would that be correct?

  22. Mertsj
    • 5 years ago
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    No

  23. Mertsj
    • 5 years ago
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    If you multiply 3 numbers and get a positive answer that can only happen in two ways: All three factors are positive OR Exactly 2 factors negative and 1 positive

  24. anonymous
    • 5 years ago
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    Ok, maybe you can help me with this one. I need to make this problem into decimal places. The square root of 25/48=T, I am trying to find the hang time of a basketball player from the vertical leap 25 inches, the function is V=48T^2

  25. Mertsj
    • 5 years ago
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    divide 25 by 48 on your calculator and then hit the square root button

  26. Mertsj
    • 5 years ago
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    T=.721689836

  27. anonymous
    • 5 years ago
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    That is not what my calculator just gave me? Do I need to do this problem on a scientific calculator?

  28. Mertsj
    • 5 years ago
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    No. Perhaps you need to enter it in a different order. Calculators vary. So try this: Push the square root key and then enter (25 divided by 48) equals

  29. anonymous
    • 5 years ago
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    I tried it on the scientific calcualtor on my computer and still came up with the same. Can you check your answer for me please?

  30. Mertsj
    • 5 years ago
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    You can check my answer. Just multiply .721687836 by itself and see if you get the same thing as when you divide 25 by 48

  31. anonymous
    • 5 years ago
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    I did on my cell phone calculator and got what you got. This is funny...

  32. Mertsj
    • 5 years ago
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    Define funny

  33. anonymous
    • 5 years ago
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    Just a smile.

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