Daily Practice - Higher Plus

The probability of winning a game is 3/8. A player expects 6 wins. How many games did they play?

On a histogram the bar for 50 < x ≤ 55 has a frequency density of 0.4. How many values are in that class?On a histogram the bar for 50 < x <= 55 has a frequency density of 0.4. How many values are in that class?

A block has mass 590 g (to the nearest 10 g) and volume 13 cm³ (to the nearest cm³). Work out the upper bound of its density, to 2 decimal places.A block has mass 590 g (to the nearest 10 g) and volume 13 cm^3 (to the nearest cm^3). Work out the upper bound of its density, to 2 decimal places.

f(x) = 4x + 12. Work out the inverse function f^-1(x).f(x) = 4x + 12. Work out the inverse function f^-1(x).

y is directly proportional to x³. When x = 4, y = 192. Work out y when x = 5.y is directly proportional to x^3. When x = 4, y = 192. Work out y when x = 5.