Radical Equations and Extraneous Roots — Unit test Answers
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21
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Which expression is equivalent to ?
A
c3d4
B
c6d9
C
c3d4
D
c6d9
22
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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 the orbital period of planet Y is twice the orbital period of planet X, by what factor is the mean distance increased?
A
2 Superscript one-third
B
2 Superscript one-half
C
2 Superscript two-thirds
D
2 Superscript three-halves
23
What is the simplest form of ?
A
3 x squared (RootIndex 4 StartRoot y Superscript 5 EndRoot
B
3 x squared y (RootIndex 4 StartRoot y EndRoot)
C
9 x squared y (RootIndex 4 StartRoot y EndRoot)
D
9 x Superscript 4 Baseline y squared (RootIndex 4 StartRoot y EndRoot)
24
What is the simplified form of the following expression?
A
6 StartRoot 2 EndRoot
B
18 StartRoot 2 EndRoot
C
30 StartRoot 2 EndRoot
D
36 StartRoot 2 EndRoot
25
Which expression is equivalent to ?
A
8y10B
8y50C
32y10D
32y50Did you find these answers helpful?
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