9.A picture frame has a white mat surrounding the picture. The frame has a width of 27 cm and a length of 36 cm. The mat is 2 cm wider at the top and bottom than it is on the sides. The area of the mat is:
A. -4x2+ 118x + 108C.-2x2+ 59x + 54D.5x2+ 80x + 92
B.
4x
2
+ 120x + 104
Polynomials Practice Exam

10.The greatest common factor of πr2and πrs is:
B.
π
rs
11.The factored form of -4x2+ 24x is:
B.
4x(x - 6)
12.The factored form of -xy3- x2y2is:
B.
-xy(y + x)
13.The factored form of 5ax - 15a - 3x + 9 is:
A. (x - 3)(5a + 3)C.(x + 3)(5a - 3)D.(x + 3)(5a + 3)
B.
(x - 3)(5a - 3)
14.A pencil can be thought of as a cylinder topped by a cone.A factored expression for the external surface area is:
B.
π
r
2
(r + h + s)
r
r
h
s
SA
Cone
=
π
r
2
+
πrs
SA
Cylinder
= 2
π
r
2
+ 2
πrh
From Formula Sheet:
Hint: The top of the cylinder
(and the bottom of the cone)
are internal to the pencil and
do not contribute to the
surface area.
Polynomials Practice Exam

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- Winter '19
- jane smith
- math 10C, C Expanding Polynomials