Daily Practice - Higher Plus

A block has mass 540 g (to the nearest 10 g) and volume 16 cm³ (to the nearest cm³). Work out the upper bound of its density, to 2 decimal places.A block has mass 540 g (to the nearest 10 g) and volume 16 cm^3 (to the nearest cm^3). Work out the upper bound of its density, to 2 decimal places.

The curve y = cos x° is drawn for 0 ≤ x ≤ 360. Write down the value of y when x = 360.The curve y = cos x° is drawn for 0 <= x <= 360. Write down the value of y when x = 360.

y is directly proportional to x³. When x = 2, y = 32. Work out y when x = 5.y is directly proportional to x^3. When x = 2, y = 32. Work out y when x = 5.

A triangle has sides 18 cm, 10 cm and 11 cm. Work out the angle opposite the 18 cm side, to 1 decimal place.

A bag holds 6 red and n blue counters. The probability of taking a red is 6/13. Work out n.