Mathematics Practice Questions

SECTION I (50 Marks)Answer all the questions in the spaces provided.Without using tables or a calculator evaluate; (3 marks) -24÷-8×5-(-30)-16×4÷2+(-8)Factorize completely 3x2-2xy-y2(2 marks)A Kenyan bank buys and sells foreign currencies as shown below.Currency Buying (Ksh)Selling (Ksh)1 Hong Kong dollar9.849.87100 Japanese yen 76.0876.12A tourist arrived in Kenya with 100 500 Hong Kong Dollars and changed the whole amount to Kenyan shillings. While in Kenya he spent Ksh. 430 897 and changed the balance to Japanese yen before leaving for Tokyo. Calculate the amount in Japanese Yen that he received. (3 marks)Use logarithm tables to evaluate (4 marks)30.7432×80.234.1252The sides of a triangle were measured to 1 decimal as 6.5cm, 7.4cm and 8.2cmrespectively. Calculate the percentage error in its perimeter (4marks) Line L1 passes through points A2, -4 and B 6, -8. Find the equation of the line L2, the perpendicular bisector