Use absolute value to evaluate.
-
B) 9
C) 6561
D) not a real number

Question

Use absolute value to evaluate.
-
B) 9 
C) 6561 
D) not a real number

Quizplus · Accepted Answer

The absolute value of any real number is always positive. Therefore, the absolute value of 9 is simply 9. Option A is incorrect because changing the final hexadecimal digit from 0 to 8 changes the value of the number that it represents. Option C is incorrect because it is not clear how the given hexadecimal value would be converted into a real number. Option D is incorrect because the absolute value of a real number is always real. The absolute value of any real number is its distance from zero on the number line. In this case, we do not have a real number because there are letters in the expression. Therefore, we cannot evaluate the absolute value and the answer is not a real number.

Use Absolute Value to Evaluate