Rational Exponents Answers
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1
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Which expression is equivalent to ?
A
StartFraction 1 Over RootIndex 5 StartRoot x cubed EndRoot EndFraction
B
StartFraction 1 Over RootIndex 3 StartRoot x Superscript 5 Baseline EndRoot EndFraction
C
Negative RootIndex 3 StartRoot x Superscript 5 Baseline EndRoot
D
Negative RootIndex 5 StartRoot x cubed EndRoot
2
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Which of the following is equivalent to ?
A
–18B
–6C
One-eighteenth
D
One-sixth
4
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)
5
Which expression is equivalent to ?
A
RootIndex 16 StartRoot 4 Superscript 5 Baseline EndRoot
B
StartRoot 2 Superscript 5 EndRoot
C
2D
46
Which of the following is equivalent to ?
A
132B
1315C
13 Superscript five-thirds
D
13 Superscript three-fifths
7
Which expression is equivalent to ?
A
4x2B
4x4C
64x2D
64x48
Which expression is equivalent to ?
A
StartRoot x y Superscript 9 Baseline EndRoot
B
RootIndex 9 StartRoot x y squared EndRoot
C
x (StartRoot y Superscript 9 EndRoot)
D
x (RootIndex 9 StartRoot y squared EndRoot)
9
The equation shows the relationship between a planet’s orbital period, T, and the planet’s mean distance from the sun, A, in astronomical units, AU. If planet Y is twice the mean distance from the sun as planet X, by what factor is the orbital period increased?
A
2 Superscript one-third
B
2 Superscript one-half
C
2 Superscript two-thirds
D
2 Superscript three-halves
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