Using the rules for significant figures, what do you get when you subtract 15.54 from 508.9538? a. 493 b. 493.4 c. 493.41 d. 493.413 e. 493.4138

C). 493.41

Explanation:

As we know that when we subtract the two numbers then the result must contain least number of precise value

or we can say it should contain least number of digits after decimal given in the question

so here we have

508.9538  =  it has 4 digits after decimal

15.54 = it has two digits after decimal

so here we will say that after the difference of two numbers the result must have two digits after decimal

so we have

508.9538 - 15.54 = 493.4138

now rounding it off for two digits after decimal

so it is 493.41

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