# Chapter 4: Cubes and Cube Roots Exercise – 4.5

### Question: 1

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

7

### Solution:

Because 7 lies between 1 and 100, we will look at the row containing 7 in the column of x.

By the cube root table, we have:

### Question: 2

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

70

### Solution:

Because 70 lies between 1 and 100, we will look at the row containing 70 in the column of x.

By the cube root table, we have:

### Question: 3

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

700

We have:

### Question: 4

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

7000

We have:

### Question: 5

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

1100

We have:

### Question: 6

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

780

We have:

### Question: 7

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

7800

### Question: 8

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

1346

### Solution:

By prime factorisation, we have:

### Question: 9

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

940

We have:

### Question: 10

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

5112

We have:

### Question: 11

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

9800

We have:

### Question: 12

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

732

We have:

### Question: 13

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

7342

We have:

### Question: 14

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

133100

We have:

### Question: 15

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

37800

We have:

### Question: 16

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

0.27

### Question: 17

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

8.6

### Question: 18

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

0.86

### Question: 19

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

8.65

### Question: 20

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

7532

We have, 7532

### Question: 21

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

833

We have, 833

### Question: 22

Making use of the cube root table, find the table, find the cube roots (correct to three decimal points)

34.2

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