A triangle's coordinates are (-2,1), (-6,1), and (-4, 5). After the triangle is rotated clockwise 270°about the origin, what are the new coordinates?
A) (1,-2), (1,-6), and (5,-4)
B) (-1,2), (1,-6), and (5,-4)
C) (1, 2), (1, 6), and (4, 5)
D) (-1,-2), (-1,-6), and (-5,-4)

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Ответ:

leilaelmazry

21.11.2021

Mathematics

9x^2 + px + 4 =0
ax^2 + bx + c
a = 9 , b = p, c = 4
b^2 - 4ac = 0
(p)^2 - 4(9 x 4) = 0
p^2 - 4(36) = 0
p^2 - 144 = 0
p^2 = 144
p = √144
p = +12 or -12
One of the root of 9x^2+px+4 = 0 is four times the other root. find possible value of p

One of the root of 9x^2+px+4 = 0 is four times the other root. find possible value of p

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A triangle's coordinates are (-2,1), (-6,1), and (-4, 5). After the triangle is rotated clockwise 270°about the origin, what are the new coordinates? A) (1,-2), (1,-6), and (5,-4) B) (-1,2), (1,-6), and (5,-4) C) (1, 2), (1, 6), and (4, 5) D) (-1,-2), (-1,-6), and (-5,-4)