Daily Practice - Higher Plus

The probability of winning a game is 1/2. A player expects 14 wins. How many games did they play?

On a histogram the bar for 20 < x ≤ 25 has a frequency density of 1.5. How many values are in that class?On a histogram the bar for 20 < x <= 25 has a frequency density of 1.5. How many values are in that class?

A block has mass 440 g (to the nearest 10 g) and volume 25 cm³ (to the nearest cm³). Work out the upper bound of its density, to 2 decimal places.A block has mass 440 g (to the nearest 10 g) and volume 25 cm^3 (to the nearest cm^3). Work out the upper bound of its density, to 2 decimal places.

Simplify (x² + 10x + 24)/(x + 4).Simplify (x^2 + 10x + 24)/(x + 4).

y is directly proportional to x³. When x = 2, y = 16. Work out y when x = 5.y is directly proportional to x^3. When x = 2, y = 16. Work out y when x = 5.