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What is the formula for this sequence 1 -2 3 -4 5 -6 7 -8 9 -10?
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∙ 10y ago
The formula is
Un = n*(-1)n+1
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∙ 10y ago
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What is the formula for following number sequence 10 9 7 4?
-1,-2,-3 10-1=9 9-2=7 7-3=4
What is the arithmetic sequence formula?
the formula is: Sn= n [2(A1)+(n - 1)d] 2 for example the given sequence is when A1 = 4 and n = 10 when d = 2 here is the solution: Sn = 4 [2(4)+(10 - 1)2] 2 Sn= 2 [6+(9)(2) Sn = 2 [6+18] Sn = 2 (24) Sn = 48 see?
What is the simple formula corresponding to the explicit formula if the first term of the sequence is -10 and the difference between terms in the sequence is 3?
Assuming each term is 3 MORE than the previous term t(n) = -13 + 3*n where n = 1, 2, 3, ...
How do you calculate the sum of all numbers from 1 through 100?
The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.
What is the formula for the geometric sequence 2 6 18 54 ...?
a(n) = a(1) x r^n-1 In this case a(1) is 2 and r is 3 That makes the formula a(n) = 2 x 3^n-1
What is the sequence of 10 8 6 4?
10-2x for x = 0, 1, 2, 3, ... Since the domain of an arithmetic sequence is the set of natural numbers, then the formula for the nth term of the given sequence with the first term 10 and the common difference -2 is an = a1 + (n -1)(-2) = 10 - 2n + 2 = 12 - 2n.
What is the formula for following number sequence 10 9 7 4?
-1,-2,-3 10-1=9 9-2=7 7-3=4
What is the sequence if the formula is 6n-4?
10
Find the explicit formula for the sequence?
Type yourWhich choice is the explicit formula for the following geometric sequence? answer here...
What is the arithmetic sequence formula?
the formula is: Sn= n [2(A1)+(n - 1)d] 2 for example the given sequence is when A1 = 4 and n = 10 when d = 2 here is the solution: Sn = 4 [2(4)+(10 - 1)2] 2 Sn= 2 [6+(9)(2) Sn = 2 [6+18] Sn = 2 (24) Sn = 48 see?
How do you find the nth term in a sequence?
Finding the nth term is much simpler than it seems. For example, say you had the sequence: 1,4,7,10,13,16 Sequence 1 First we find the difference between the numbers. 1 (3) 4 (3) 7 (3) 10 (3) 13 (3) 16 The difference is the same: 3. So the start of are formula will be 3n. If it was 3n, the sequence would be 3,6,9,12,15,18 Sequence 2 But this is not our sequence. Notice that each number on sequence 2 is 2 more than sequence 1. this means are final formula will be: 3n+1 Test it out, it works!
Which choice is the simple formula for the nth term what arithmetic sequence 6 2 -2 -6 -10?
10 - 4n
How do you figure out the formula in a 1 3 6 10 15 sequence?
There is no formula, but I can point out that: between the numbers you get: +1,+2,+3,+4+5... so the next term would be +6 or 21
What is th formula for the number sequence 3 7 12 18 25?
What is the formula for the number sequence 3 7 12 18 25...? This series is similar to the triangular number sequence 1 3 6 10 15 21.... with the formula n(n+1)/2. So for the number sequence 3 7 12 18 25... I derived a new formula by adding 2n to n(n+1)/2 to get this simplified formula: [(n*n) + 5n)]/2 (or n squared plus 5n all divided by two) when n=1, we get [(1*1) + 5(1)]/2=(1+5)/2= 6/2=3 when n=2, we get [(2*2) + 5(2)]/2=(4+10)/2=14/2=7 when n=3, we get [(3*3) + 5(3)]/2=(9+15)/2=24/2=12 when n=4, we get [(4*4) + 5(4)]/2=(16+20)/2=36/2=18 when n=5, we get [(5*5) + 5(5)]/2=(25+25)/2=50/2=25 If we want to know the 10th number in this series, we substitute n by 10 in our formula, we get [(10*10) + 5(10)]/2=(100+50)/2=150/2 = 75
Can a recursive formula produce an arithmetic or geometric sequence?
arithmetic sequence * * * * * A recursive formula can produce arithmetic, geometric or other sequences. For example, for n = 1, 2, 3, ...: u0 = 2, un = un-1 + 5 is an arithmetic sequence. u0 = 2, un = un-1 * 5 is a geometric sequence. u0 = 0, un = un-1 + n is the sequence of triangular numbers. u0 = 0, un = un-1 + n(n+1)/2 is the sequence of perfect squares. u0 = 1, u1 = 1, un+1 = un-1 + un is the Fibonacci sequence.
What is the answer to this sequence 2 4 6 8 10 12?
The sequence is xn = xn-1 + 2
What is the Th term of the arithmetic sequence given by the explicit rule?
The answer depends on what the explicit rule is!
