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Mathematics, 21.06.2019 13:00
In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;
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Mathematics, 21.06.2019 17:30
Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?
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Multiply and simplify. 4x+4/x^2 × (x+2)(x-1)/x+1...
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