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lolly Group Title

Can someone please help me with this? i don't get it...:/

  • 2 years ago
  • 2 years ago

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  1. lolly Group Title
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    • 2 years ago
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  2. amistre64 Group Title
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    in order for the line to be 8, the angle has to be greater than zero

    • 2 years ago
  3. amistre64 Group Title
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    oh ... its an equation in x ... thought x was the angle at first

    • 2 years ago
  4. amistre64 Group Title
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    i would say that 5x+3 has to be less than 58

    • 2 years ago
  5. lolly Group Title
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    sooo...how do you find x? or what am i supposed to be finding?

    • 2 years ago
  6. amistre64 Group Title
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    well, we want the angle to be greater than 0 and less than 58; so solve those 2 conditions to find your limits

    • 2 years ago
  7. amistre64 Group Title
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    5x+3 > 0 and 5x+3 < 58

    • 2 years ago
  8. amistre64 Group Title
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    58 corresponds to 11, which is what the left side is telling us; and the right side say in order to be 8, the angle needs to be bigger than zero, since and angle of zero gives us a zero length

    • 2 years ago
  9. lolly Group Title
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    soo which one would it be?

    • 2 years ago
  10. amistre64 Group Title
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    youll have to do the math from the equation i gave you ...

    • 2 years ago
  11. amistre64 Group Title
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    5x+3 > 0 and 5x+3 < 58 solve x for each case

    • 2 years ago
  12. lolly Group Title
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    whats the first step?

    • 2 years ago
  13. lolly Group Title
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    minus 3 from each side?

    • 2 years ago
  14. amistre64 Group Title
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    yes, minus 3 then divide off the 5

    • 2 years ago
  15. nickersia Group Title
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    Ok here is what I think :) AB = BC BD = BD So those two triangles ABD and BCD have two same sides. ABD got third side 11, and opposite angle 58 BCD got third side 8, and oppsoite angle 5x+3 So we can use proportion 11:58=8:(5x+3) 55x+33=464 55x=431 x=7.84 Something around, I'm not sure does x has to be that number, any way you have options, which makes it easier... A is not for sure, because it is almost impossible when sides BD and BC are same as in ABD triangle, and the side is 8, to use 0.00000001 for x, which will be aroud 3 degrees... B got negative value, same story C smallest number will make angle bigger that 58 degrees, so not this one too D is the right answer, I think I hope I helped you, this was a really hard one... Enjoy and good luck! :)

    • 2 years ago
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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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