Select all equations that have no solution. 6 + 18x = 12 + 27x-9x
4x - 6 - 2x = 2x - 7
20x -- (10x + 2) = 10x + 7
8 + 21x - 7x = 8 + 14x

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Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.