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f2-revision-exercise_2

f2-revision-exercise_2 - F. Time allowed 20 minutes Name 1...

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F.2 Mathematics Revision Test Time allowed: 20 minutes Name: __________________________ F.2____ ( ) 1. A gold coin weighs 150 g correct to the nearest x g. If the percentage error is 3 2 1 %, what is the value of x ? A. 10 B. 5 C. 2.5 D. 1 2. Given that the weight of Sam is 36 kg correct to the nearest kg or 36.5 correct to the nearest 0.5 kg, which of the following may be the actual weight of Sam? A. 36.3 kg B. 36.1 kg C. 35.8 kg D. 35.4 kg 3. If Ax + Bx ( x + 2) + C ( x + 2) 2 2 x 2 + 6 x - 4 is an identity, then the values of B and C are A. B = 3 C = - 1 B. B = - 3 C = 1 C. B = 2 C = - 1 D. B = 2 C = 1 4. ( x 2 - 2 xy + y 2 )( x 2 + 2 xy + y 2 ) = A. x 4 + y 4 B. x 4 + 2 x 2 y 2 + y 4 C. x 4 - 2 x 2 y 2 + y 4 D. x 4 - y 4 5. Factorize 2 x 4 + 16 x 2 - 18. A. ( x + 1)( x - 1)( x 2 + 9) B. ( x + 3)( x - 3)( x 2 + 1) C. 2( x + 1)( x - 1)( x 2 + 9) D. 2( x + 3)( x - 3)( x 2 + 1)
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6. Factorize 9 - x 2 - y 2 + 2 xy . A. (3 - x - y )(3 - x + y ) B. (3 - x - y )(3 + x - y ) C. (3 - x - y )(3 + x + y ) D. (3 - x + y )(3 + x - y ) 7. Simplify ab a b ab - - - 2 2 1 1 . A. ab 1 B. a - b C. ab b a - D. ) ( 1 b a ab - 8. Given that n m n m n m = + + 2 , make m the subject of the formula where m and n are positive. A. m 2 = 2 2 n B. m 2 = 2 n 2 C. m = 2 n D. m = 2 n 9. In the figure, x = A. 49 ° B. 59 ° C. 145 ° D. 229 °
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10. In the figure, PQR , PUS , QUT and RST are straight lines. Given that SU = ST , which of the following is true? A. y + z - x = 180 ° B. x - y + z = 180 ° C. y + 2 z - x = 180 ° D. 2 y +
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