Daily Practice - Higher

14 students study Spanish and 5 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.

Four classes in order have frequencies 5, 7, 9, 12. Write down the cumulative frequency at the end of the third class.

Write √72 in the form a √b, where b is as small as possible.Write sqrt(72) in the form a sqrt(b), where b is as small as possible.

For the curve y = x² - 2x - 5, work out y when x = -4.For the curve y = x^2 - 2x - 5, work out y when x = -4.

A block has volume 200 cm³ and density 7.5 g/cm³. Work out its mass.A block has volume 200 cm^3 and density 7.5 g/cm^3. Work out its mass.