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If a system of equations consists of 2 parallel lines, then how many solutions does it have? plz answer asap

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In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

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Calculate the density of benzene if 300ml of it weighs 263g. a. 0.88 g/ml b. 1.14 g/ml c. 78,900 g/ml d. 37 g/ml

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Need on this geometry question. explain how you did it.

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Factor the expression using gcf 9b+45

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If a system of equations consists of 2 parallel lines, then how many solutions does it have? plz an...

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