0
Numbers
Numbers are our way to quantify, label, and organize the world around us in a logical manner. However, the systems used to obtain this goal differ geographically, historically, and by relative utility. All questions pertaining to numbers, including historic labeling systems, bases of numerical systems, constants, and the various ways they're grouped together, should be placed into this category.
46,867 Questions
Why is density express in 2 significant number?
It need not be.
Mathematically, the number of significant numbers should depend only on the number of significant digits in the measures for mass and volume used to calculate the density.
In real life, though, few substances are identical from one sample to another: their density can vary and a 2 sig fig density is usually the best compromise between accuracy and inclusion of all varieties of the substance.
Why do even numbers divided by two have anything to do with 2 being the only even prime number?
The number 2 has only two factors: 1 and itself. Everything other even number is divisible by two, which means the number has at least three factors: 1, 2, and itself, which means they cannot be prime and must be composite.
What are the difrrence between a whole number and a natural number?
A natural number is a whole number that's bigger than 0. So 3, 17 and 123343 are both but -17, 0 and -188772 are whole numbers only.
How can you use the prime factorization of two numbers to find their greatest common multiple?
The greatest common multiple is an infinite amount and cannot be factored.
Which integer is between -12 and 0?
The integer that is between -12 and 0 is . . .
-11, -10, -9, -8, -7, -6, -5, -4, -3, -2, and -1 .
What is the formula for the number sequence 67 58 62 53 57 48?
One possible answer is:
Un = (-26n5 + 455n4 - 2990n3 + 9100n2 - 12659n + 8130)/30 for n = 1, 2, 3, ...
Yes. It ends in 5 so it is a multiple of 5. 5 * 77 = 385.
