Multiplying Radicals — Test Answers
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21
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What is the following product? Assume
A
80 x Superscript 4 Baseline + 8 x Superscript 4 Baseline StartRoot 30 x EndRoot + 24 x Superscript 4
B
80 x Superscript 6 Baseline + 8 x Superscript 5 Baseline + 8 x Superscript 5 Baseline StartRoot 30 EndRoot + 24 x Superscript 4
C
104 x Superscript 4
D
104 x Superscript 4 + 16 x Superscript 4 Baseline StartRoot 30 EndRoot
22
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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)
23
The orbital period, P, of a planet and the planet’s distance from the sun, a, in astronomical units is related by the formula . If Saturn’s orbital period is 29.5 years, what is its distance from the sun?
A
9.5 AUB
19.7 AUC
44.3 AUD
160.2 AU24
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
25
What is the solution of ?
A
x = –3B
x = 4C
x = –3 or x = 4D
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