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What is the general term of 1 -8 26 -64 125?
Assume you meant 27, not 26. The general formula for the nth term is - (-1)n n3 True, but why not assume that the numbers are correct and that the general term is defined by a more complicated function. For example, t(n) = (285*x4 - 3184*x3 + 12237*x2 - 18806*x + 9480)/12 generates the above numbers.
How to find the range in a set of data?
Subtract the largest value and the smallest value. (example: 12, 23, 49, 62) 62-12 range:50
The ninth term of an arithmetic progression is 54 and the sum of the 12 terms 438 find the first term and the common difference?
t(n) = a + 8*d = 54 .. .. .. .. .. .. .. (A) s(12) = 12*a + 66*d = 438 .. .. .. .. (B) 12*(A) - (B) => 12*A + 96*d -12*A - 66*D = 648 - 438 => 30*d = 210 = d = 7 Then substituting this value in (A) gives a + 54 = 54 => a = -2 So the first term is -2 and the common difference is 7.
What is the range of 10 8 4 5 8 6 12?
To find the range of a set of numbers, subtract the lowest value from the highest; so the range is 12 - 4, or 8.
What is a set of data the a mean of 9?
That is an infinite list. One such set is (5, 7, 9, 12, 12)
