alejandra340
03.08.2019 •
Mathematics
Find perimeter of the rectangle pqrs formed by points of intersection of parabolas y=2x^2−12 and y=−3x^2+8 and their projections on the x-axis.
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Ответ:
points of intersection of parabolas are--------->point P and point Q
point P(-2,-4) point Q(2,-4)
their projections on the x-axis. are---- > point R and point S
point R(-2,0) point S(2,0)
the sides length of of the rectangle are
PQ=RS= 4
PR=QS=4
Perimeter=PQ+RS+PR+QS=16
the answer is 16
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