Cuanto es 12x + 12 = 12 + 12 cuanto es x + 4x = x + 48
cuanto es 3x + 12 = 24 - 5 + 2x - 1
necesito las respuestas urgente y el procedimiento igual

896.31 cm= km 100cm = 1m 1000m = 1km a) 0.0089631 b) 0.0089631 c) 8.9631 d) 89.631

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle