Presumably they should be all the correct answers.
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arithmetic sequence. for example: 4,8,12,16 is an arithmetic sequence because it is 4+4+4+4. hope this helps!
Its an arithmetic progression with a step of +4.
It is the sum of all of the numbers, divided by the number of numbers. For example, what is the arithmetic mean of this set of numbers: 8, 6, 4, 2 ? Add up the numbers: 8+6+4+2=20. The number of numbers is 4; so divide 20 by 4 to get 5, which is the arithmetic mean.
The 4 basic arithmetic operations are addition, multiplication, division, and subtraction. subtraction is the inverse (opposite) of addition the same way around and the same concept as division and multiplication.
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