1.
Determine which expression is not a polynomial.
A.
x
2
-
y
2
+
z
2
B.
C.
D.
Hint
2.
Find the perimeter of triangle
ABC
.
A.
(4
w
+ 8) in.
B.
(4
w
+ 22) in.
C.
(8
w
+ 8) in.
D.
(8
w
+ 9) in.
Hint
3.
Simplify (4
r
-
s
) - (
r
+ 2
s
) + (3
r
-
s
).
A.
6
r
- 4
s
B.
6
r
- 3
s
C.
3
r
- 2
s
D.
8
r
Hint
4.
Simplify (7
x
2
+ 2
x
– 3) – (2
x
2
– 11
x
+ 4)
A.
B.
C.
5
x
2
+ 13
x
– 7
D.
Hint
5.
Determine whether the expression 5
x
3
y
3
–
x
2
y
2
is a polynomial.
A.
No, because there are two terms.
B.
Cannot be determined from given information.
C.
Yes.
D.
No, because there are two variables.
Hint