What is the absolute value of -90?
The absolute value of a number is simply its distance from zero on the number line. Regardless of whether a number is positive or negative, its absolute value is always positive. So, **the absolute value of -90 is 90**.
FAQs about absolute value:
1. What is absolute value?
Absolute value refers to the magnitude or size of a number, without considering its sign.
2. How is absolute value calculated?
To find the absolute value of a number, you disregard its sign and take the positive value.
3. Why is the absolute value of -90 positive?
By definition, the absolute value of a negative number is always positive.
4. Can absolute value be negative?
No, absolute value is always positive or zero as it represents distance.
5. What is the difference between absolute value and modulus?
Both terms refer to the same concept and can be used interchangeably.
6. Is the absolute value of a number always an integer?
No, the absolute value of a number can be a non-integer if the number itself is not an integer.
7. What is the absolute value of 0?
The absolute value of 0 is simply 0 itself, as it is equidistant from both positive and negative numbers.
8. Can you determine the absolute value of a complex number?
Yes, the absolute value of a complex number is calculated as the distance from the origin of the complex plane.
9. Is the absolute value of a positive number the same as the number itself?
Yes, the absolute value of a positive number is equal to the number itself, as there is no difference between the two.
10. What happens when you take the absolute value of a fraction?
The absolute value of a fraction is always a positive fraction, as long as the numerator and denominator have the same sign.
11. How does absolute value affect inequalities?
When dealing with inequalities, taking the absolute value of both sides can change the direction of the inequality if a negative number is involved.
12. Can the absolute value of a sum be greater than the sum of the absolute values?
No, the absolute value of a sum is always less than or equal to the sum of the absolute values of the individual numbers being added.