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anonymous
 one year ago
Pre algebra questions <~< ~Is actually trying and needs help~
anonymous
 one year ago
Pre algebra questions <~< ~Is actually trying and needs help~

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Triangle 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 yaxis. (4 points) Part C: Are the two triangles PQR and P''Q''R'' congruent? Explain your answer. Part c: They must be similar but because of dilation they cant be congruent.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Part B: NO IDEA. Part A: I really don't know what they're asking here oo

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I can't see the rest of the word omo

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1You can see the scale is 1/3, since Q (0,9) goes to Q' (0,3) P (3,6) goes to P' (1,2) dw:1444602422134:dw

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1same as R (3,0) goes to R' (1,0) 1/3 R = R'

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1for B, just change the xcoordinate of the points from positive to negative. like P' ( 1,2), after reflecting about y axis, it becomes (1,2) . That is it. Do the same with Q', R'

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1for C, they are congruent.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0B: Q'= (0,3) R'= (1, 0) P'= (1, 2) < making sure I got that right.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ohhh so everything is opposite

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1just xcoordinate, not y

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0because 0 is a positive and a negative ( aka it can't be negative.)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Part A: 1/3 Q (0,9) goes to Q' (0,3) P (3,6) goes to P' (1,2) Part B: r' = (1,0) P'= (1, 2) Q'= (0,3) Part C: They are congruent. <checking if it's ok to move on to the next question>

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1answer for a ) is " the scale of dilation is 1/3"

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It says to explain why they're congruent, I thought congruent meant same shape and same size that's why your answer is confusing me.

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1One of the theorem of congruence is SSS, right? your triangle P'Q' R' after rotating about y axis, its sides do not change its length. right? You fold a triangle by a paper, then you rotate it, or move it to other place, its sides stay, right? the triangle is itself still., right?