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Absolute value of 1.5?
The absolute value of a positive number is the same number - in this case, 1.5. The absolute value of a negative number is the number, without the sign. Note that the absolute value of an expression like (-x) is not necessarily (x); rather, you have to separately consider the case that x is positive, or that x is negative. For example, the absolute value of x is x (if x is positive), or (-x) (if x is negative).
Is the black wire on a lamp connection plus or minus?
The color of the wire does not indicate its polarity. In electrical systems, the polarity is typically designated as positive (+) and negative (-) rather than plus or minus. To determine which wire is positive or negative on a lamp connection, you would need to consult the manufacturer's instructions or use a multimeter to check the voltage.
What is the least common factor of 17 and 7?
The least common factor of any set of positive integers is 1.
What are some ways to be more confident?
There are a number of ways to become more confident. For instance, try to replace negative thoughts with positive ones. Don't always compare yourself to others but rather promote your positive attributes. Other ideas to become more confident can be found online at Nerd Fitness, Tiny Buddah, and Pick the Brain.
Why do two negative numbers when multiplied equal one positive?
There's sort of two answers to this: 1) it's totally arbitrary, as are all the rules of math. 2) think of all numbers as vectors rather than as scalars. ... Thus all positive numbers lie to the right of the origin, or at 0 degrees - negative numbers are then at 180 degrees. ... Then when you multiply two vectors you add their angles. ... and 180 + 180 = 360 (or 0) and is therefore a positive result.
