Daily Practice - Foundation Plus

Grouped data has five classes of width 10, the first being 30 < x ≤ 40. The frequencies in order are 16, 21, 3, 7, 11. Write down the modal class.Grouped data has five classes of width 10, the first being 30 < x <= 40. The frequencies in order are 16, 21, 3, 7, 11. Write down the modal class.

Write (9⁴)² as a single power of 9.Write (9^4)^2 as a single power of 9.

The lines y = -3x + 12 and y = x + 4 are drawn. Write down the coordinates of the point where they cross.

A pack of 4 teabags costs £2.20. A pack of 8 costs £4.24. Which pack is better value?

A cone has base radius 4 cm and vertical height 3 cm. Work out its volume, leaving your answer in terms of π.A cone has base radius 4 cm and vertical height 3 cm. Work out its volume, leaving your answer in terms of pi.