Evaluate $\int\limits_{0}^{\tfrac{\pi }{2}}{\sin xdx}$

An arc subtends an angle of 30^oat the centre of a circle radius 12cm. Calculate the length of the arc

Evaluate $\frac{0.8\times 0.43\times 0.031}{0.05\times 0.07\times 0.021}$ correct to four significant figures.

Find$\frac{dy}{dx}$ , if $y=\tfrac{2}{3}{{x}^{3}}-\tfrac{4}{x}$ 

From the table above, find the median

Evaluate $\frac{{{27}^{\tfrac{1}{3}}}-{{8}^{\tfrac{2}{3}}}}{{{16}^{\tfrac{2}{4}}}\times 2}$

Calculate the perimeter of a sector a circle of radius 9cm and angle 36^o

A number of pencils were shared out among Bisi, Sola, and Tunde in the ratio of 2:3:5 respectively. If Bisi got 5, how many were share out

Simplify $\frac{0.026\times 0.36}{0.69}$ leave your answer in standard form