1.
Find the perimeter of triangle
ABC
.
A.
(8
w
+ 8) in.
B.
(4
w
+ 22) in.
C.
(4
w
+ 8) in.
D.
(8
w
+ 9) in.
Hint
2.
Simplify (4
r
-
s
) - (
r
+ 2
s
) + (3
r
-
s
).
A.
8
r
B.
6
r
- 4
s
C.
3
r
- 2
s
D.
6
r
- 3
s
Hint
3.
Find the difference (-3
x
3
– 7
x
2
+ 5
x
– 4) – (6
x
2
– 8).
A.
–3
x
3
– 13
x
2
+ 5
x
+ 4
B.
–3
x
3
–
x
2
+ 5
x
- 12
C.
–3
x
3
– 13
x
2
+ 5
x
- 12
D.
-11
x
8
+ 4
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.
-3
x
4
y
2
- 4
xy
2
+ 2
xy
2
- 10
B.
-11
x
4
y
2
- 3
x
2
y
+
xy
2
- 10
C.
-11
x
4
y
2
- 3
x
2
y
+ 3
xy
2
D.
-11
x
4
y
2
- 3
x
2
y
+ 3
xy
2
- 10
Hint
5.
Determine whether the expression
x
+
y
+
z
is a monomial, binomial, or trinomial.
A.
Cannot be determined from given information.
B.
binomial
C.
trinomial
D.
monomial
Hint