Daily Practice - Higher Plus

The probability of winning a game is 1/5. A player expects 11 wins. How many games did they play?

A histogram has four 10-wide classes from 0, with frequency densities 3, 1, 2, 0.5. Which class contains the median?

A block has mass 740 g (to the nearest 10 g) and volume 19 cm³ (to the nearest cm³). Work out the upper bound of its density, to 2 decimal places.A block has mass 740 g (to the nearest 10 g) and volume 19 cm^3 (to the nearest cm^3). Work out the upper bound of its density, to 2 decimal places.

Solve x² + x < 0.Solve x^2 + x < 0.

y is inversely proportional to x². When x = 5, y = 8. Work out y when x = 2.y is inversely proportional to x^2. When x = 5, y = 8. Work out y when x = 2.