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anonymous

  • one year ago

can some one please help me?

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  1. anonymous
    • one year ago
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    Welcome to Openstudy! please state your question?

  2. anonymous
    • one year ago
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    thanks. Triangle PQR is transformed to triangle P'Q'R'. Triangle PQR has vertices P(3, −6), Q(0, 9), and R(−3, 0). Triangle P'Q'R' has vertices P'(1, −2), Q'(0, 3), and R'(−1, 0). Plot triangles PQR and P'Q'R' on your own coordinate grid. Part A: What is the scale factor of the dilation that transforms triangle PQR to triangle P'Q'R'? Explain your answer. (4 points) Part B: Write the coordinates of triangle P"Q"R" obtained after P'Q'R' is reflected about the y-axis. (4 points) Part C: Are the two triangles PQR and P''Q''R'' congruent? Explain your answer. (2 points)

  3. anonymous
    • one year ago
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    I will be right back, i need to finish helping another student.

  4. anonymous
    • one year ago
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    okay thank you @whatdoesthismean

  5. anonymous
    • one year ago
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    This link are shortcuts to reflections and rotations. Memorize them, and it will make reflections and rotations much simpler. http://www.regentsprep.org/regents/math/geometry/gt5/RuleSheet.pdf

  6. anonymous
    • one year ago
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    just remember ALL rotations are counterclockwise unless said otherwise, so do not get confused.

  7. anonymous
    • one year ago
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    For the first one, it will make it easier if you graphed it using a online calculator or something.

  8. anonymous
    • one year ago
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    I prefer desmos but mathway is fine too.

  9. anonymous
    • one year ago
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    is that a website @whatdoesthismean

  10. anonymous
    • one year ago
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    yes, use Mathway.

  11. anonymous
    • one year ago
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    Sorry, unfortunately i have to go. Hopefully somebody else can successfully explain it all to you. :)

  12. anonymous
    • one year ago
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    okay thank you @whatdoesthismean

  13. jim_thompson5910
    • one year ago
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    P(3, -6) P'(1, -2) what are we doing to each coordinate to go from P to P' ?

  14. anonymous
    • one year ago
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    im really not sure @jim_thompson5910

  15. jim_thompson5910
    • one year ago
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    solve for k 3k = 1 -6k = -2

  16. anonymous
    • one year ago
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    from 3k=1 I got 0.33 repeating @jim_thompson5910

  17. jim_thompson5910
    • one year ago
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    k = 1/3 works as well

  18. jim_thompson5910
    • one year ago
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    k = 1/3 means that you are multiplying each coordinate by 1/3 or dividing each coordinate by 3

  19. jim_thompson5910
    • one year ago
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    do you see how that works?

  20. anonymous
    • one year ago
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    yes kinda. im really lost though and I cant figure it out.@jim_thompson5910 hey can we make a deal

  21. jim_thompson5910
    • one year ago
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    |dw:1437358951823:dw|

  22. jim_thompson5910
    • one year ago
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    |dw:1437358959201:dw|

  23. jim_thompson5910
    • one year ago
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    |dw:1437358980091:dw|

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