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28
Two numbers can have only one arithmetic mean. In this case, it is -2.5Two numbers can have only one arithmetic mean. In this case, it is -2.5Two numbers can have only one arithmetic mean. In this case, it is -2.5Two numbers can have only one arithmetic mean. In this case, it is -2.5
16
The sequence is arithmetic if the difference between every two consecutive terms is always the same.
You can use the formula for an arithmetic series for that.
10 and 17
It is not possible to place 8 arithmetic means between two numbers since they can have only one arithmetic mean not eight! The one-and-only arithmetic mean of 2 and 17 is (2+17)/2 = 9.5
28
Two numbers can have only one arithmetic mean. In this case, it is -2.5Two numbers can have only one arithmetic mean. In this case, it is -2.5Two numbers can have only one arithmetic mean. In this case, it is -2.5Two numbers can have only one arithmetic mean. In this case, it is -2.5
16
The sequence is arithmetic if the difference between every two consecutive terms is always the same.
Any two numbers can have only one arithmetic mean. If the numbers are x and y, then their arithmetic mean is (x + y)/2.
You can use the formula for an arithmetic series for that.
The difference between arithmetic and geometric mean you can find in the following link: "Calculation of the geometric mean of two numbers".
Add the two numbers and divide by two, or find the number which is halfway between the two numbers.
An arithmetic sequence is a line-up of numbers in which the DIFFERENCE between any two next-door neighbors is always the same.
An arithmetic-geometric mean is a mean of two numbers which is the common limit of a pair of sequences, whose terms are defined by taking the arithmetic and geometric means of the previous pair of terms.