DIAMLER L VADLAMURI
WebWorK Set 01
Problem Set 01 covers lecture topics from chapter 1 in the book.
1.
(1 pt) ¡b¿Note:¡/b¿ You only have TWO (2) tries for this
question.
This exercise focuses on operations with inequality and in
terval notations.
Match the sets and the inequalities by placing the letter of the
inequality next to each set listed below:
1. All
x
in the interval
[

16
,
13
)
2.
x
is greater than

16
3.
x
is no more than 13
4.
x
is nonnegative
5. All
x
in the interval
[

16
,
13
]
A.

16
≤
x
≤
13
B.
x
≤
13
C.
x
≥
0
D.

16
≤
x
<
13
E.

16
<
x
2.
(1 pt) This exercise concerns the definition of absolute
values.
Evaluate the following expressions:

9

=

9

3

=
If 9
<
x
, then simplify:

9

x

=
If
y
<

3, then

y
+
3

y
+
3
=
3.
(1 pt)
Evaluate:
1
8
(

2

2
/
3
2
)
=
¡b¿NOTE:¡/b¿ Your answer must be a number. It cannot be
an algebraic expression.
4.
(1 pt)
Evaluate:
3
(

10
)(
5

11

2
(
8
))
=
¡b¿Note:¡/b¿ Your answer must be a number. It cannot be an
algebraic expression.
5.
(1 pt) Using properties of real numbers, the expression
(
9
a
)(
7
b
+
4
c

10
d
)
can be written in the equivalent form
K
·
ab
+
M
·
ac
+
N
·
ad
.
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 Spring '10
 D'ARVILLE
 Biology, Algebra, 1 pt, Department of Mathematics, University of Rochester

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