1.
Find the perimeter of triangle
ABC
.
A.
(8
w
+ 9) in.
B.
(4
w
+ 8) in.
C.
(8
w
+ 8) in.
D.
(4
w
+ 22) in.
Hint
2.
Simplify (4
r
-
s
) - (
r
+ 2
s
) + (3
r
-
s
).
A.
3
r
- 2
s
B.
8
r
C.
6
r
- 4
s
D.
6
r
- 3
s
Hint
3.
Find (4
x
2
+ 3
x
) + (7
x
2
– 5
x
– 6).
A.
11
x
4
– 2
x
2
– 6
B.
11
x
2
– 2
x
– 6
C.
9
x
– 6
D.
11
x
2
– 8
x
– 6
Hint
4.
Find the difference (-7
x
4
y
2
– 3
x
2
y
+ 2
xy
2
– 5) – (4
x
4
y
2
–
xy
2
– 5).
A.
-11
x
4
y
2
- 3
x
2
y
+ 3
xy
2
- 10
B.
-11
x
4
y
2
- 3
x
2
y
+ 3
xy
2
C.
-11
x
4
y
2
- 3
x
2
y
+
xy
2
- 10
D.
-3
x
4
y
2
- 4
xy
2
+ 2
xy
2
- 10
Hint
5.
Find the polynomial that represents the measure of the perimeter of the triangle.
A.
5
xy
2
+ 10
x
B.
15
xy
2
C.
7
xy
2
+ 10
x
– 2
y
D.
7
x
3
y
6
+ 10
x
2
– 2
y
Hint