Daily Practice - Higher

27 students study Spanish and 8 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.

A box plot has minimum 5, lower quartile 12, median 14, upper quartile 20 and maximum 23. Work out the interquartile range.

Work out (6 x 10⁴) x (6 x 10^-5). Give your answer in standard form.Work out (6 x 10^4) x (6 x 10^-5). Give your answer in standard form.

Use the quadratic formula to solve x² + 8x - 6 = 0, to 2 decimal places.Use the quadratic formula to solve x^2 + 8x - 6 = 0, to 2 decimal places.

y is directly proportional to x². When x = 4, y = 32. Work out y when x = 2.y is directly proportional to x^2. When x = 4, y = 32. Work out y when x = 2.