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Quiz on Fractional Indices

Authored by John Cartwright

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12th Grade

Quiz on Fractional Indices
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the denominator of a fractional index represent?

The power to raise the answer to

The root of the number

The base number

The reciprocal of the base

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of 64^{1/2}?

4

8

16

32

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you evaluate 27^{2/3}?

Square the number and then find the cube root

Find the cube root and then square the result

Add 3 to the number

Multiply the number by 2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of 4^{-3/2}?

8

1/16

1/4

1/8

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a fractional index of 1/4 indicate?

The square of a number

The fourth root of a number

The reciprocal of a number

The cube of a number

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of 81^{3/4}?

9

27

243

3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a common misconception about fractional indices?

Raising a term to the power of 2 means we find the square root

Raising a term to the power of 1/2 means we find the square root

Raising a term to the power of 3 means we cube it

Raising a term to the power of 1/3 means we find the cube root

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