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Kobotan [32]
3 years ago
6

What is the difference of the polynomials? (12x^2-11y^2-13x)- (5x-14y^2-9x)

Mathematics
2 answers:
vova2212 [387]3 years ago
7 0
The Answer is A... your welcome
RoseWind [281]3 years ago
7 0

Answer:

7x^2+3y^2-4x

Step-by-step explanation:

photomath says A

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Read 2 more answers
Triangle RST has vertices R(2, 0), S(4, 0), and T(1, –3). The image of triangle RST after a rotation has vertices R'(0, –2), S'(
sleet_krkn [62]

Answer with explanation:

Pre -image= Vertices of Δ R ST=R(2, 0), S(4, 0), and T(1, –3)

Image of Δ R ST after rotation= R'(0, –2), S'(0, –4), and T'(–3, –1)

Pre-Image lies in Fourth Quadrant and Image lies in Third Quadrant.

If triangle is rotated by different angles in anticlockwise direction,then

   (a,b)_{90^{\circ}}=(-b, a)\\\\(a,b)_{180^{\circ}}=(-b, -a)\\\\(a,b)_{270^{\circ}}=(b, -a)

If triangle is rotated by different angles in Clockwise direction,then

     (a,b)_{90^{\circ}}=(b, -a)\\\\(a,b)_{180^{\circ}}=(-b, -a)\\\\(a,b)_{270^{\circ}}=(-b, a)

⇒→So, Pre image that is ,Δ R ST having vertices ,R(2, 0), S(4, 0), and T(1, –3) when rotated by either 90° in clockwise direction or by 270°, in anticlockwise Direction to get Image Δ R' S'T' having vertices R'(0, –2), S'(0, –4), and T'(–3, –1)  .

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3 years ago
Which equation represents the vertical line passing through (7,-3)?
Dima020 [189]
As Y is the vertical axis it’s narrows down to B or D but you always go along the graph first so the answer is B
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