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Mathematics, 21.06.2019 19:00
45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?
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Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x
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Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.
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Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.
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If R is the midpoint of QS, find QS QR=2x+16 RS=5x-17...
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