Mat 190 Test 3 Worksheet - 2008
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1
2Test 3
MAT 190
Winter 2008
Name ________________________
Simplify all answers and show your work!
−
−
>
−
−
≤
−
<
1. Solve the inequality:
5
1 (
)
( 3
) 3
2. Solve the inequality:
2
5
2
7
x
x
x
3. At a pizza restaurant, a family can purchase four pizzas and three 2-Liter sodas for $30 or three pizzas
and two 2-Liter sodas for $22. What is the cost of a single pizza?
+
=
3 +
2
5
9
2
x
y
x
-1
4. If f(x) =
, find the inverse (f
(x)).
5. Solve the system
+
=
7
3
4
3
x
y
Simplify the following.
−
4
−
−
2
2
3
2
5
2x
18
−
−
x
y
x
y
2
3
3
6.
7.
3 (
)
8.
9.
x
y
−
−
4
3
5
5
5
y
24
x
y
x
y
3
3
8
– 9
5
10.
32
11. y
• y
• y
2
2
2
2
2
+
−
−
+
12. Combine like terms:
3
6
8
4
6
x
y
x
y
xy
x
y
xy
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