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It depends on what r stands for.

If r is the radius of a circle or sphere, then yes, it must be non-negative.

If r is one of the polar coordinates it can be zero, but not negative.

If r is the correlation coefficient, it can be zero or negative.

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Q: Is the value of R always positive?
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Related questions

What is the absolute value for the positive?

the absolute value for a negative or positive value is always positive


Is the absolute value for an negative number always positive?

Yes, the absolute value for an negative number is always positive.


Why is the absolute value always positive?

It's positive by definition. That's what the absolute value is.


Absolute value is always?

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Yes, always.


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Absolute value is always positive. Absolute value is the distance away from zero. Ex: |-4| = 4 |4| = 4


Can the absolute value of a number be both positive and negative Explain?

Well, honey, the absolute value of a number is always positive, no matter what. It's like a magnet that repels negativity. So, no, it can't be both positive and negative at the same time. It's just not how math works, sweetie.


Is the absolute of a positive integer is a negative integer?

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How do you find the domain and range of an exponential decay equation?

A typical formula for exponential decay is y(t) = c*exp(-r*t) , where r > 0. The domain is all reals, and the range is all positive reals, since a positive-base exponential always returns a positive value.


Is the absolute value of a positive number is always a negative number is it true?

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