Foundation Plus

Does the point (3, -9) satisfy y > -3x - 5?

A block has volume 175 cm³ and density 3 g/cm³. Work out its mass.A block has volume 175 cm^3 and density 3 g/cm^3. Work out its mass.

Two similar shapes have lengths in the ratio 1 : 2. The smaller has an area of 21 cm². Work out the area of the larger.Two similar shapes have lengths in the ratio 1 : 2. The smaller has an area of 21 cm^2. Work out the area of the larger.

A biased coin lands on heads with probability 0.4. It is thrown 250 times. How many heads would you expect?

Grouped data has five classes of width 10, the first being 40 < x ≤ 50. The frequencies in order are 16, 7, 3, 11, 21. Write down the modal class.Grouped data has five classes of width 10, the first being 40 < x <= 50. The frequencies in order are 16, 7, 3, 11, 21. Write down the modal class.