Daily Practice - Higher

23 students study Spanish and 10 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 9, 9, 7, 10. Write down the cumulative frequency at the end of the third class.

Write √8 in the form a √b, where b is as small as possible.Write sqrt(8) in the form a sqrt(b), where b is as small as possible.

Solve x² - 5x - 6 = 0.Solve x^2 - 5x - 6 = 0.

A block has volume 60 cm³ and density 2.5 g/cm³. Work out its mass.A block has volume 60 cm^3 and density 2.5 g/cm^3. Work out its mass.