The Math Placement Test With Answers - Grade 11 - Sait Page 29
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Grade 11 Mathematics Answer Key
1
1
1
−
−
− −
−
1)
2 ,
2 ,
2 ,
2.5
4
8
4
3
14
a 6a
3 4
2) a)
b)
106
c)
d)
6ab c d 3ac
7
3
−
9 2
6
−
−
3) a)
b) 114 48 3
c) 4
d)
5
2
52
=
=
= −
4) a) x 28
b) x 3 only; x
1 is an extraneous root and not a solution!
=
=
=
=
d) x 4 (x 1is an extraneous root)
c) x 5 (x 0 is an extraneous root)
+
+
+
2
3x 3
6x 6
x
x
5) a)
b)
c)
−
−
−
2
3x 15
6x 30
x
5x
(
)
(
)
+
− −
+
+
2
6) a) a 2b
b)
c)
n 3
x
1 x 1
(
)
−
−
+
28 x 3
4a 1
a c
d)
e)
f)
(
)
(
)
+
+
2
3x x 5
a a 2
2
12
2
=
=
= −
=
7) a)
x
b)
x
6
c) no solution!(x 1is an extraneous root)
d)
x
7
5
8) 87°, -87°, 93°, 273° (many other possibilities exist).
9) 2 29
° =
° =
°
c) tan 270 is undefined
10) a) sin180
0
b) cos 90
0
3 13
2
=
θ =
θ =
11) Radius length is r 2 13
, therefore
cos
and
tan
13
3
2
° =
12) sin 30° = ½ , tan 45° = 1 and
cos 45
2
Math Placement Test Study Guide | Grade 11 Answer Key
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