Essential mathematics for engineering and manufacturing

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A TV screen is manufactured using the ratio of width to height 16 : 9. It is then advertised using the diagonal length the size of the TV. Calculate the length and width of a TV screen (to the nearest inch) that is advertised at 55 inches.

• 16 inches by 9 inches

• 48 inches by 27 inches

• 24 inches by 13.5 inches

• 24 inches by 14 inches

• 3

• 9

• x = 1.5 ∧ x = -4

• x = -1.5 ∧ x = -4

• x = 1.5 ∧ x = 4

• x = -1.5 ∧ x = 4

Find the missing angle x in the triangle below. Give your answer to the nearest degree.

• 45°

• 28°

• 41°

• 60°

• x = 1.00

• x = 1.16

• x = 1.17

• x = 1.87

A tank can hold 360 litres of water when full. 1 litre of water is equivalent to 1000 cubic centimetres. Given that the width of the tank is 1.2 m and the depth is 0.75 m, determine the height of the tank.

• 0.4 m

• 0.45 m

• 0.5 m

• 0.55 m