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CheddaDsk
11.05.2021 •
Mathematics
Judy is cutting construction paper into rectangles for a project. She needs to cut one rectangle that is 12 inches x 12 inches. She needs to cut another rectangle that is 10 inches by 10 – inches. How many total square inches of construction paper does Judy need for her project? +
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Ответ:
(x-h)^2 = 4a (y-k)
(x-2)^2 =4a (y-2)
a is the equidistant distance from focus to vertex and from vertex to directrix that is equal to -0.5
then the answer is
(x-2)^2 =-0.5*4 (y-2)
x2 - 4x + 4 = -2y +4
x2-4x+2y = 0
answer is C