It's a quite complicates system, based on units of ten. For all the details, go to Wikipedia and in the search box write 'Egyptian numerals'.
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Numbers divisible by 8 will all be even. They will all be divisible by 4 and again by 2, and will all be divisible by 2 and by 2 again and by 2 again.2,7,9,6,9
There are two square root functions from the non-negative real numbers to either the non-negative real numbers (Quadrant I) or to the non-positive real numbers (Quadrant IV). The two functions are symmetrical about the horizontal axis.
The greatest common factor, or GCF, is the largest positive integer that will divide evenly with no remainder into all the members of a given set of numbers.
Age is a ratio-scale variable. The properties of the ratio-level data are: # Data classifications are ordered according to the amount of the characteristics they possess. # Equal differences in the characteristics are represented by equal differences in the numbers assigned to the classifications. # The zero point is the absense of the characteristics and the ratio between two numbers is meaningful. Say for example a 20-year-old and a 40-year-old man. You can say that the 40-year-old is twice as old as the 20-year-old. This shows that the difference is meaningful.