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Why does the expression -a does not always represent a negative number?
Wiki User
∙ 8y ago
* If "a" is positive, "-a" is negative.* If "a" is negative, "-a" is positive.
* If "a" is zero, "-a" is zero.
If you want to force a negative number, you can write -|a|, i.e., the negative of the absolute value.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoThe expression -a does not always represent a negative number because could be negative changing the negative sign in front to a positive sign.
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Does -x always represent a negative number why or why not?
No. If x, itself, is negative then -x is positive. Or x could be zero, in which case, -x is not negative, either.
Is a positive number and a negative number will always be negative?
A positive number multiplied by a negative number will always result in a negative number.
Can one number represent an algebraic expression?
Yes it can
When a negative number is subtracted from a positive number is the difference always positive?
Yes, a negative number subtracted from a positive number will always be positive. Subtracting a negative number is the same as adding the opposite of the negative number. The opposite of a negative number is always positive. A positive number plus a positive number is always positive.
Which whole number does the expression represent 2.7x10 6?
It is 2700000.
Explain why x does not necessarily represent a positive number?
x may not always represent a positive number because there are equations that make a variable a negative number
Does -x always represent a negative number why or why not?
No. If x, itself, is negative then -x is positive. Or x could be zero, in which case, -x is not negative, either.
Is a positive number and a negative number will always be negative?
A positive number multiplied by a negative number will always result in a negative number.
Can one number represent an algebraic expression?
Yes it can
How do you work out how to times a positive number by a negative number?
A positive number times a positive number will always get you a positive number A negative number times a negative number will always get you a positive number (same signs will get you a positive number) but A positive number times a negative number will always get you a negative number or A negative number times a positive number will always get you a negative number (different signs will get you a negative number)
What is an expression for 20 times a number?
If x is used to represent the unknown number, then the expression for 20 times a number would be 20x.
HOW Can you use absolute to represent a negative number in a real-world situation?
use a absolute value to represent a negative number in the real world
When a negative number is subtracted from a positive number is the difference always positive?
Yes, a negative number subtracted from a positive number will always be positive. Subtracting a negative number is the same as adding the opposite of the negative number. The opposite of a negative number is always positive. A positive number plus a positive number is always positive.
Which whole number does the expression represent 2.7x10 6?
It is 2700000.
When is there no solution possible to an absolute value equation and why?
For example: | x | = -1 Or any other equation where the absolute value of any expression is negative. This doesn't have a solution, because the absolute number of any expression is always positive, or zero, never negative.
When does a negative number plus a negative number equal a negative?
Always.
How can you use absolute value to represent a negative number in a real-world situation?
use a absolute value to represent a negative number in the real world
