NOTE:
Be sure to bubble the answers to questions 1  20 on your scantron.
Part I: 2 points each
In problems 1 through 5 indicate whether each of the following statements
are true or false.
1. The number
√
25 is a natural number.
A. True
B. False
2. If
b <
0, then

b

=
b
.
A. True
B. False
3. If
x
is a real number, then
√
x
2
+ 9 =

x

+ 3
A. True
B. False
4.
7
p
(

2009)
7
=

2009.
A. True
B. False
5. The polynomial 3
x
4

2
x
+ 12
x
6
+ 1 has degree 4.
A. True
B. False
6. Write the following statement as an inequality. “The distance between x
and

3 is at most 6 units.”
A.

x

3
 ≤
6
B.

x

3

<
6
C.

x
+ 3
 ≤
6
D.

x
+ 3
 ≥
6
7. Which of the following is not
a polynomial?
MAC 1140
Page 1 of 8
Exam 1A
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8. The equation 4 + (
z
+
x
) = (4 +
z
) +
x
illustrates which property of the
real numbers?
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 Fall '08
 WILLIAMSON
 Calculus, Algebra, Addition, A., Commutativity, A. True B.

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