College Algebra Unit I Practice Exam Worksheet With Answer Key
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12College Algebra - Unit I Exam - Practice Questions
Note: The actual exam will consist of 20 multiple choice questions and 6
show - your - work questions. Extra questions are provided for practice.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Simplify the exponential expression. Assume that variables represent nonzero real numbers.
3
(2x 3 )
1)
1)
x 15
2
8
8
8
A)
B)
C)
D)
x 6
x 9
x 24
x 6
Evaluate the expression.
2) 81 -3/2
2)
1
1
A) -
B) 729
C) -729
D)
729
729
Simplify the exponential expression. Assume that variables represent nonzero real numbers.
-3
6x -5 y -2 z 3
3)
3)
2xy -2 z -3
x 18
x 18 y 4
x 12
3x 18
A)
B)
C)
D)
27z 18
27z 18
27z 18
z 18
Solve the problem.
4) The algebraic expression 0.07d 3/2 describes the duration of a storm, in hours, whose diameter is d
4)
miles. Use a calculator to determine the duration of a storm with a diameter of 7 miles. Round to
the nearest hundredth.
A) 0.19 hours
B) 18.52 hours
C) 0.34 hours
D) 1.30 hours
Solve and check the linear equation.
5) 10x + 7 = 2 + 4x
5)
6
5
6
14
A)
B) -
C) -
D)
5
6
5
9
Find the slope of the line that goes through the given points.
6) (-5, -1) and (-4, 5)
6)
9
1
4
A) 6
B)
C)
D)
4
6
9
1
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