AnswersPre-Algebra BFinding Distance in the Coordinate Plane

Exploring Real Numbers Answers

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1
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Which is the decimal expansion of ?

Question illustration
A
ModifyingAbove 0.318 with bar
Option A
B
0.3ModifyingAbove 18 with bar
Option B
C
0.ModifyingAbove 318 with bar
Option C
D
0.31ModifyingAbove 8 with bar
Option D
2
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What value of x will make the equation true? [BLANK]

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Answer not available
3

Which irrational number can be multiplied by – to get a product that equals 1?

Question illustration
A
StartRoot StartFraction 1 Over 41 EndFraction EndRoot
Option A
B
Negative StartRoot 41 EndRoot
Option B
C
Negative StartRoot StartFraction 1 Over 41 EndFraction EndRoot
Option C
D
StartRoot 41 EndRoot
Option D
4

Which irrational number can be added to to get a sum that is rational?

Question illustration
A
StartFraction 1 Over pi EndFraction
Option A
B
Negative StartFraction 1 Over pi EndFraction
Option B
C
Negative pi
Option C
D
Pi
Option D
5

Sam said the square root of a rational number must be a rational number. Jenna disagreed. She said that it is possible that the square root of a rational number can be irrational. Who is correct and why?

A
Jenna is correct because all square roots are irrational numbers.
B
Sam is correct because all square roots of rational numbers are rational. An example is .
Option B
C
Jenna is correct because not all square roots are rational. An example is
Option C
D
Sam is correct because the properties of square roots state that the square root of a rational number is a rational number.
6

Which simplified fraction represents ?

Question illustration
A
StartFraction 45 Over 99 EndFraction
Option A
B
StartFraction 99 Over 45 EndFraction
Option B
C
StartFraction 5 Over 11 EndFraction
Option C
D
StartFraction 11 Over 5 EndFraction
Option D
7

Which simplified fraction is equal to ?

Question illustration
A
StartFraction 24 Over 45 EndFraction
Option A
B
StartFraction 8 Over 15 EndFraction
Option B
C
StartFraction 48 Over 90 EndFraction
Option C
D
StartFraction 5 Over 9 EndFraction
Option D
8

The sum of a rational number and an irrational number equals:

A
a terminating decimal.
B
a rational number.
C
a fraction.
D
an irrational number.
9

Which fraction has a terminating decimal as its decimal expansion?

A
One-third
Option A
B
One-fifth
Option B
C
StartFraction 1 Over 7 EndFraction
Option C
D
StartFraction 1 Over 9 EndFraction
Option D
10

How many repeating digits are in ?

Question illustration
A
1
B
2
C
3
D
4

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