What must be added to ${{x}^{2}}-3x$ to make it a perfect square?

The table below satisfies the relation $y=k\sqrt{x}$ , where k is a positive constant. Use it to answer  18 and 19

The table below satisfies the relation $y=k\sqrt{x}$ , where k is a positive constant.

In the diagram PR is a diameter of the circle centre O. RS is a tangent at R and $\angle QPR={{58}^{\circ }}$, find $\angle QRS$

The ratio of boys to girls in a class is 5:3, find the probability of selecting at random a girl from the class

In the diagram  find x^o + y^o

Represent the solution of the inequality $\frac{x-2}{2}\ge \frac{x+3}{4}$ on the number line

In the diagram $\left| QR \right|=5cm$ $\angle PQR={{60}^{\circ }}$ and $\angle PSR={{45}^{\circ }}$. Find $\left| PS \right|$ leaving your answer in surd form

Which of this diagram show(s) the correct method of constructing a perpendicular line PQ at a given X on

In the diagram PQUV, PQTU, QRTU and QRST are parallelograms. $\left| UV \right|=4.8cm$ and the perpendicular distance between PR and VS is 5cm. Calculate the area of quadrilateral PRSV