Foundation Plus

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

Write 3¹⁰ x 3³ as a single power of 3.Write 3^10 x 3^3 as a single power of 3.

The lines y = 3x - 4 and y = 2x are drawn. Write down the coordinates of the point where they cross.

A map has a scale of 1 : 25000. Two villages are 6 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 21 cm. Work out its volume, leaving your answer in terms of π.A cone has base radius 7 cm and vertical height 21 cm. Work out its volume, leaving your answer in terms of pi.