Practice Paper – Set 1 AS Level Mathematics B (MEI) H630/01 Pure Mathematics and Mechanics MARK SCHEME

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H630/01 Mark Scheme Practice Paper 6 Question Answer Marks AOs Guidance 1 2 = cos1 0.3 M1 1.1a 2 = 72.54, 287.46, 432.54, 647.46  = 36.3, 143.7, 216.3, 323.7 A1 1.1b For at least one... correct answer in the range A1 1.1b For all correct with no others in the range [3] 2 Boundary values 2, 7 B1 3.1a BC {x : x  2}  {x : x  7} B1 2.3 For both of x < 2, x > 7 or better Ignore use of either ‘or’ or ‘and’ here B1 2.5 For completely correct answer expressed in correct set notation Must be  and  for this mark [3] 3 Let T1 and T2 be the tensions in the strings to m kg mass and 2m kg mass respectively T1 = mg and T2 = 2mg B1 3.3 For values of tensions clearly stated or shown on the diagram T2  T1  F = 0 M1 3.3 F = mg towards the m kg mass (to the left on the diagram) A1 2.2a [3] H630/01 Mark Scheme Practice Paper 7 Question Answer Marks AOs Guidance 4 (i) Distance 2 2 CO ( 4) 3 5     M1 1.1a Allow (4)2 + 32 if CO2 clearly stated (x + 4)2 + (y  3)2 = 25 M1 1.1a Use of circle equation with their r 2 A1 2.1 Correct answer; isw [3] (ii) A is the point (0, 6) B1 3.1a Gradient of AC is 3 4 M1 1.1a Gradient of tangent is 4 3  M1 1.1a [Equation of tangent is 4 3 y    6 x ] When y = 0, 9 2 x  M1FT A1 1.1b 2.2a Use their point A and gradient to find B ca [Show More]

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