Daily Practice - Higher

Four classes in order have frequencies 11, 11, 7, 10. Write down the cumulative frequency at the end of the third class.

Write √12 in the form a √b, where b is as small as possible.Write sqrt(12) in the form a sqrt(b), where b is as small as possible.

For the curve y = 20/x, work out y when x = -4, and write down the equation of its vertical asymptote.

A block has volume 55 cm³ and density 7.5 g/cm³. Work out its mass.A block has volume 55 cm^3 and density 7.5 g/cm^3. Work out its mass.

Two similar solids have lengths in the ratio 1 : 2. The larger has a volume of 264 cm³. Work out the volume of the smaller.Two similar solids have lengths in the ratio 1 : 2. The larger has a volume of 264 cm^3. Work out the volume of the smaller.