maths 1.docx - NYAMIRA SUB-COUNTY JOINT EVALUATION EXAMS MATHENATICS 121\/1 MARKING SCHEME JULY\/AUGUST 2014 1 NO Log 4.283 0.6317 0.009478 3.9767 x 2

maths 1.docx - NYAMIRA SUB-COUNTY JOINT EVALUATION EXAMS...

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NYAMIRA SUB-COUNTY JOINT EVALUATION EXAMS MATHENATICS 121/1 MARKING SCHEME JULY/AUGUST 2014 1. NO Log 4.283 0.6317 0.009478 3.9767 + x 2 5.9534 4.6851 Log 9.814 1.9964 4.5887 2 2.2944 10 -2 x ant 2944 10 -2 x1.9697 0.019697 M1 M1 M1 A1 2. 2 3 8 27 . . 8 27 1408 4752 . . 3 f s l F S V A.S.F= 4 9 2 3 2 2 792 352 4 9 arg cm ercylinder l M1 M1 A1 03 3. Actaul volume = Minimum volume = Maximum volume = M1 M1 M1 A1 - - - -
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Absolute error = 1112738 . 174 4955357 . 184 2 1 % error= =2.896% 4. 2 3 3 6 3 3 3 0 6 3 x A y Ax y y Ax 3 1 A g A g 3 2 41 0 41 0 21 20 0 3 7 4 5 ) 3 , 4 ( 0 7 5 k k k k x x k y x 0 41 7 5 y x 7 41 7 5 7 7 x y 7 41 7 5 x y A g 3 7 5 2
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5 21 5 5 A 5 21 A 5. ) 2 3 )( 2 3 ( 10 ) 4 9 ( 10 2 2 y x y x y x M1 A1 02 6 38 . 67 3846 . 0 cos 3846 . 0 cos 13 5 cos 1 62 . 112 sin sin 30 sin 13 30 sin 62 . 112 sin 13 sin 30 sin 999 . 11 sin Sin θ=23.99997 Sin θ=24 M1 M1 A1 7. ) ....... ( .......... 7 ) 19 5 12 ( ) .( .......... 4 ) 29 ) 12 21 ( ii x y x i x y x M1 A1 θ 5 10 5 R P 13 37.38o 112.62o 13cm 30o P S R
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249 83 133 35 84 116 48 84 y y x y x 3 1 7 21 36 29 21 29 ) 3 ( 12 21 ) ( 3 3 249 83 x x x x i in y substitute y y B1 8 Let R=resistance in Newton
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