The histogram above shows the number of tons of rice produced. What was the quantity produced from May to September?

Divide the expression ${{x}^{3}}+7{{x}^{2}}-x-7$ by ${{x}^{2}}-1$

If $y={{x}^{2}}+\sqrt{x}$ , find $\frac{dy}{dx}$

If $P=\left( \begin{matrix}   2 & 3  \\   4 & 5  \\\end{matrix} \right)$ and $Q=\left( \begin{matrix}   4 & 2  \\   3 & 3  \\\end{matrix} \right)$

Simplify $(\sqrt{3}-\sqrt{2})(2\sqrt{3}+\sqrt{2})$

Find the length of arc which subtend an angle an angle of 60^oat the centre of a circle whose radius 12cm

Simplify $1\tfrac{2}{3}+4\tfrac{1}{4}\div 1\tfrac{5}{12}$

If $y=3\sin (-4x)$ ,$\tfrac{dy}{dx}$ is

Evaluate $4(x-2)<8(x+3)$

In how many ways can the letters of the word ELATION be arranged?