3e math mye 2014 p2 answers.docx
TRANSCRIPT
Marking Scheme Paper 23 Express_MYE_20141(a)(i)
B1
(ii)
M1
A1
(b)(i)2a =
B1
(ii)
M1
M1
A1
(c)(i)c = 0.8B1
(ii)t = $10.80B1
(iii)
M1
A1
(iv)
M1
A1
2(a) = 22%M1,A1
(b)(i)Borrowed amount = $108000 $45000 =$63000B1
(ii)
M1
A1
(iii)
M1
A1
(c)60% ------- $64 800
B1
B1
3(a)(i)y = -4B1
(ii)
C(0, 2) .B1B(x, -4)
B(-2.4, -4) .B1
(iii)Length of BC =
M1
A1
(iv)E(2.4, 8)B1
(v)
M1,A1
(b)(i)360 266 = 94
B1
B1
(ii)
B1B1
4(a)
B1
(b)
B1
(c) .M1
.M1
M1
(shown)
(d)
M1
A1, A1
(e)112.811Round down to 112 magazines.B1
5(a)(i) 15.3 cmM1, A1
(ii)
M1,M1
A1
(b)
(shown)M1,M1,M1
(c)
M1
A1
6(a)a = 18; b = 22B1, B1
(b)Perimeter = 86B1
(c)4n + 6 B1
(d)n = 25B1
7(a) (e)L1 ---- correctly plotted line
S1 ------------- correct scaleP1 ----- correctly plotted ptsC1 ----- smooth curve
B1, B1
0.1 B1
0.1 B1, B1
8(a)43B1
(b)38B1
(c)
M1
A1
(d)29B1
(e)(i)
M1
A1
(ii)
B1
4