Find the gradient of the line joining the points (2 ,– 3) and (2,5)

If x varies inversely as y varies directly as z , what is the relationship between x and z

In the diagram, $\angle QPT=\angle PTS={{90}^{\circ }}$, $\angle PQR={{110}^{\circ }}$and . Find the size of the obtuse angle QRS

Make u the subject of the formula, $E=\frac{m}{2g}({{v}^{2}}-{{u}^{2}})$

The coordinates of point P and Q are (4,3) and (2, –1) respectively. Find the shorest distance between P and Q

Find the truth set of the equation ${{x}^{2}}=3(2x+9)$

If $X=\{0,2,4,6\}$, $Y=\{1,2,3,4\}$ and$Z=\{1,3\}$ are subset of $U=\{x:0\le x\le 6\}$, find $X\cap (Y\cup Z)$

Three quarters of a number added to two and a half number gives 13. Find the missing number

Given that x > y and 3 < y, which of the following is/are true?

I y > 3

II. x < 3

III. x > y > 3

In the diagram x + y = 220^o . Find the value of n