Question

Which sentence demonstrates the multiplicative identity? A: 1/2•2=1 B: 1/2•1=1/2 C: 1/2+0= 1/2

Answer 1

Answer:

(B)

Step-by-step explanation:

A multiplicative identity is the property in which when a number is multiplied with one (1), the number remains unchanged.

Thus, (A) The given sentence is :

$\frac{1}{2}{\times}2=1$

This sentence does no undergo multiplication with 1, therefore, this option does not demonstrates the multiplicative property, hence this option is incorrect.

(B) The given sentence is:

$\frac{1}{2}{\times}1=\frac{1}{2}$

This sentence undergoes multiplication with 1 and gives the unchanged number, thus this option demonstrates the multiplicative identity, hence this option is correct.

(C) The given sentence  is :

$\frac{1}{2}+0=\frac{1}{2}$

The given expression undergoes addition, thus this option is incorrect.

Answer 2

The answer is B:  1/2 x 1 = 1/2