If x =3, y = 2 and z = 4 what is the value of \(3x^{2}-2y+z\)
Solve the simultaneous equation: x+y=2 and 3x-2y=1
If \(8^{x+1}=\frac{1}{4}\), find x
A chord of length 6cm is drawn in a circle of radius 5cm. Find the distance of the chord from the center of the circle