Simplify: √640

Complete the square: x² - 9x + 1

Find area of triangle: a = 26cm, b = 17cm, angle = 48°. Give your answer to 2 decimal places

a:b is 7:5 and b:c is 7:1. Find a:b:c in its simplest form.

Find the mean, median and range of: 85, 27, 45, 42, 22, 53, 97, 31, 65. Give your answer to 2 decimal places

Simplify: 4√40

Complete the square: x² - 3x - 1

Find area of triangle: a = 12cm, b = 12cm, angle = 57°. Give your answer to 2 decimal places

a:b is 5:8 and b:c is 9:5. Find a:b:c in its simplest form.

Find the mean, median and range of: 15, 11, 67, 96, 19, 25, 68, 69

Simplify: √250

Complete the square: 2x² + 4x - 14

Find area of triangle: a = 20cm, b = 23cm, angle = 73°. Give your answer to 2 decimal places

a:b is 5:3 and b:c is 2:5. Find a:b:c in its simplest form.

Find the mean, median and range of: 49, 53, 42, 68, 49, 17, 51, 63, 65. Give your answer to 2 decimal places

Simplify: √490

Complete the square: x² - x + 7

Find area of triangle: a = 22cm, b = 13cm, angle = 41°. Give your answer to 2 decimal places

a:b is 8:7 and b:c is 3:8. Find a:b:c in its simplest form.

Find the mean, median and range of: 27, 15, 66, 95, 40, 83, 40, 35. Give your answer to 2 decimal places

Simplify: √847

Complete the square: 4x² + 48x + 15

Find area of triangle: a = 24cm, b = 25cm, angle = 52°. Give your answer to 2 decimal places

a:b is 8:7 and b:c is 5:1. Find a:b:c in its simplest form.

Find the mean, median and range of: 51, 91, 22, 57, 14, 32, 60, 52. Give your answer to 2 decimal places