Rational Exponents Answers
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1
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Which expression is equivalent to ?
A
4 x squared y cubed (RootIndex 3 StartRoot 2 x squared y EndRoot)
B
2 x Superscript 4 Baseline y Superscript 5 Baseline (RootIndex 3 StartRoot 4 EndRoot)
C
2 x squared y cubed (RootIndex 3 StartRoot 4 x squared y EndRoot)
D
4 x Superscript 4 Baseline y Superscript 5 Baseline (RootIndex 3 StartRoot 2 EndRoot)
2
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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)
3
What values of a and b make the equation true?
A
a = 3, b = 2B
a = 2, b = 3C
a = 3, b = 4D
a = 4, b = 34
Which expression is equivalent to ? Assume x 0 and y > 0.
A
StartFraction 8 y Superscript 4 Baseline StartRoot x EndRoot Over 5 x EndFraction
B
StartFraction 8 y squared StartRoot x EndRoot Over 5 EndFraction
C
StartFraction 5 StartRoot x EndRoot Over 8 y squared EndFraction
D
StartFraction 5 x StartRoot x EndRoot Over 8 y Superscript 4 Baseline EndFraction
5
Which expression is equivalent to ?
A
2 StartRoot 30 x EndRoot
B
2 StartRoot 30 EndRoot
C
4 StartRoot 30 x EndRoot
D
60 StartRoot 2 x EndRoot
6
Which expression is equivalent to ? Assume x > 0 and y 0.
A
StartFraction x squared StartRoot 5 EndRoot Over y EndFraction
B
StartFraction y StartRoot 5 EndRoot Over x squared EndFraction
C
StartFraction StartRoot 5 EndRoot Over x squared y EndFraction
D
StartFraction x StartRoot 5 EndRoot Over y EndFraction
7
Which expression is equivalent to ? Assume and
A
2 x squared z squared StartRoot 8 y cubed z EndRoot
B
4 x squared y z cubed StartRoot 2 x squared EndRoot
C
8 x Superscript 4 Baseline y z Superscript 4 Baseline StartRoot 2 y z EndRoot
D
64 x Superscript 4 Baseline y z Superscript 4 Baseline StartRoot 2 y z EndRoot
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