Calculate °, the through which the x pendulum swings. 9) In triangle THB: angle TBH = 90 ° • THB = 32 °. • G is a on HB. angle TGB = 57 ° • GH = 46 metres. • Calculate the length of TB. 4 10) flows through a horizontal pipe of diameter 60 centimetres. The surface width, AB, of the water is 55 centimetres. 4 (a) Calculate the depth, of the water in the pipe. d, (b) What other depth of water would give the same surface width? 1 11) There are 2·69 million vehicles in Scotland. It is estimated that this number will increase at a rate of 4% each year. If this estimate is correct, how many vehicles will be in 3 years’ time? Give your answer correct to 3 significant figures. 4 12) Part of the graph of = 1 + sin is shown in the diagram below. y x° The line = 1·7 is drawn. It cuts the graph of = 1 + sin at A and B as y y x° shown. 4
Calculate x °, the through which the pendulum swings. 9) In triangle THB: • angle TBH = 90 ° • THB = 32 °. G is a on HB. • angle TGB = 57 ° • GH = 46 metres. Calculate the length of TB. 4 10) flows through a horizontal pipe of diameter 60 centimetres. The surface width, AB, of the water is 55 centimetres. (a) Calculate the depth, d, of the water in the pipe. (b) What other depth of water would give the same surface width? 4 1 11) There are 2·69 million vehicles in Scotland. It is estimated that this number will increase at a rate of 4% each year. If this estimate is correct, how many vehicles will be in 3 years’ time? Give your answer correct to 3 significant figures. 4 12) Part of the graph of y = 1 + sin x° is shown in the diagram below. The line y = 1·7 is drawn. It cuts the graph of y = 1 + sin x° at A and B as shown. 4
N5-Maths-Exam-Revision-Booklet-1.docx