Four alternative options are given for each of the following statements. Select the correct option.

The value of (7.2)² is (use an identity to expand):

A. 49.4

B. 14.4

C. 51.84

D. 49.04

Open in App

Solution

7.2 = 7 + 0.2

Using the identity with a = 7 and b = 0.2:

Hence, the correct answer is C.

Suggest Corrections

Similar questions

Four alternative options are given for each of the following statements. Select the correct option.

The product 58 × 62 is (use an identity):

A. 4596

B. 2596

C. 3596

D. 6596

Four alternative options are given for each of the following statements. Select the correct option.

The median of 37, 83, 70, 29, 32, 42, 40 is:

A. 29

B. 30

C. 40

D. 42

Four alternative options are given for each of the following statements. Select the correct option.

The mean of scores 10, 15, 12, 15, 15 is:

A. 15

B. 13

C. 13.4

D. 14.3

Four alternative options are given for each of the following statements. Select the correct option.

The mean of 6, 4, 7, x and 10 is 8. The value of x is:

A. 10

B. 12

C. 14

D. 13

Four alternative options are given for each of the following statements.

Select the correct option.

The number whose 8% is 12 is:

A. 120

B. 150

C. 130

D. 140

Join BYJU'S Learning Program