C=α(C+c(Y-tY)-(R+rY))++(1-α)(C+c(Y-tY))
3xx4y
whats 9+10
3x x 4y
a circle with a 12cm diameter is drawn, a chord is then drown that goes through the centre of the circle, how long is this chord
6x x y
6xmultipliedby x and y
x^2-6x-4 =0
2x -3> $\sqrt{25}$ +6
10-4a+7a
