Foundation Plus

Grouped data has five classes of width 5, the first being 15 < x ≤ 20. The frequencies in order are 3, 11, 7, 16, 21. Write down the modal class.Grouped data has five classes of width 5, the first being 15 < x <= 20. The frequencies in order are 3, 11, 7, 16, 21. Write down the modal class.

Write 2⁶ x 2³ as a single power of 2.Write 2^6 x 2^3 as a single power of 2.

The lines y = x + 4 and y = -4x + 24 are drawn. Write down the coordinates of the point where they cross.

A map has a scale of 1 : 50000. Two villages are 4 cm apart on the map. How far apart are they in real life, in km?

A cone has base radius 7 cm and vertical height 9 cm. Work out its volume, leaving your answer in terms of π.A cone has base radius 7 cm and vertical height 9 cm. Work out its volume, leaving your answer in terms of pi.