Radical Equations and Extraneous Roots Answers
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1
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The radius of a circle with an area of 60 square centimeters is represented by the expression centimeters. What is another way of expressing the radius?
A
2 StartRoot 15 pi EndRoot
B
4 StartRoot 5 pi EndRoot
C
StartFraction 2 StartRoot 15 pi EndRoot Over pi EndFraction
D
StartFraction 4 StartRoot 5 pi EndRoot Over pi EndFraction
2
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To rationalize the denominator of , you should multiply the expression by which fraction?
A
StartFraction StartRoot 10 EndRoot Over StartRoot 10 EndRoot EndFraction
B
StartFraction StartRoot 11 EndRoot Over StartRoot 11 EndRoot EndFraction
C
StartFraction 2 minus StartRoot 10 EndRoot Over 2 minus StartRoot 10 EndRoot EndFraction
D
StartFraction 3 minus StartRoot 11 EndRoot Over 3 minus StartRoot 11 EndRoot EndFraction
3
What is the following quotient?
A
2 ✓ CorrectB
4C
OptionD
Option4
Multiplying by which fraction will produce an equivalent fraction with a rational denominator?
A
OptionB
✓ CorrectC
OptionD
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