Thursday, June 13, 2013

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REVISION 1(a)Round off 70610 fix to 2 world-shaking figures (b)Round off 0.05057 correct to three significant figures. (b) rescue 8.53 x 106 as a single number.[3 marks] break up: (a) (b) (c) 2Evaluate the following numbers and fall out tongue to your coiffe in standard. (a) 5.09 x 106 + 59800 (b) 1.03 x 10-7 2.67 x 10-10 (c) 7200 ÷ 0.0782 (d) 8.45 x 106 x 3.21 x 10-5 [8 marks] manage: (a) (b) (c) (d) 3Expand the following to form quadratic equation expressions (a)(x 3)(2x + 5) (b)(4x + 1)(4x 1) (c)(3x + 2)2[6 marks] attend: (a) (b) (c) 4.Factorise the following expressions completely (a) 9 3w2 (b) 4m2 20m (c) x2 6x + 8 (d) 7x2 + 21x + 14[8 marks] Answer: (a) (b) (c) (d) 5.Solve the following equations a) 3x2 5x = 2 b) 5(x 3) = 2x(3 x)[16 marks] c) 6x + 3 = 3 9 x2 d) 3(8p2 5) = 2 p Answer: 6.Calculate the value of g and h that satisfy the following coinciding linear equations.
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(a) g + 2h = 1 4g 3h = 18 (b)a 2b = 21 2 a + 5 b = 32 3 2 (c) 4p + q = 17 2p + 2 q = 8 3 [12 marks] Answer: 7.a)In Diagram 1, POQ is a sector of a carrousel with marrow squash O and CDEF is a semicircle with internality C. OFCDQ is a cracking line. a)a a) E D C P It is give that OQ = 12 cm, CD = 3.5 cm and POQ = 900. victimisation , rate and give your answer correct to ii ten-fold places: (i) the area, in cm2, of the shaded region (ii) the perimeter, in cm, of the shaded region. [6 marks] O Q F Diagram 1 It i b)Diagram 2 shows the quarter-circle DOE and the semicircle ABC, both with centre O. Given that OA = 12cm and OE = 18cm. utilize , calculate and give your answer correct to two denary places: (i) the...If you want to get a full essay, order it on our website: Ordercustompaper.com

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