Cumulative Exam — Cumulative exam Answers
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43
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Which expression is equivalent to the following complex fraction?
A
StartFraction x minus 1 Over 2 x EndFraction
B
Negative one-half
C
StartFraction 2 x minus 2 Over x EndFraction
D
StartFraction 2 x Over x minus 1 EndFraction
44
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Which is the graph of a logarithmic function?
A
On a coordinate plane, a curve starts in quadrant 4 and curves up into quadrant 1.
B
On a coordinate plane, a straight line is shown.
C
On a coordinate plane, a hyperbola is shown.
D
On a coordinate plane, a parabola is shown.
45
What is the numerator of the simplified sum?
A
mc027-2.jpg
B
mc027-3.jpg
C
mc027-4.jpg
D
mc027-5.jpg
46
Which expression is equivalent to ?
A
–81B
–12C
StartFraction 1 Over 81 EndFraction
D
One-twelfth
47
For what value of a does ?
A
–1B
0C
1D
no solution48
What is the simplest form of ?
A
3 a b squared (RootIndex 3 StartRoot b EndRoot)
B
3 a b cubed (RootIndex 3 StartRoot 3 a b EndRoot)
C
9 a b squared (RootIndex 3 StartRoot b EndRoot)
D
9 a b cubed (RootIndex 3 StartRoot 3 a b EndRoot)
49
Which shows the following expression after the negative exponents have been eliminated?,
A
StartFraction x Superscript 4 Baseline Over y squared x Superscript 6 Baseline y Superscript 6 Baseline EndFraction
B
StartFraction x x Superscript 4 Baseline Over y squared y Superscript 6 Baseline EndFraction
C
StartFraction x Superscript 4 Baseline Over y squared x y Superscript 6 Baseline EndFraction
D
StartFraction x Superscript 4 Baseline y squared Over x y Superscript 6 Baseline EndFraction
50
Which expression is equivalent to ?
A
x cubed (RootIndex 3 StartRoot y EndRoot)
B
x Superscript 9 Baseline (RootIndex 3 StartRoot y EndRoot)
C
x Superscript 27 Baseline (RootIndex 3 StartRoot y EndRoot)
D
x Superscript 24 Baseline (RootIndex 3 StartRoot y EndRoot)
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