What is the 9th term of the arithmetic sequence defined by the rule below?
A(n)=-14+(n-1) (2)
1.D 2.B 3.C 4.D
well, just plug in n=9
A(9) = -14 + (9-1)(2) = 2
yesses
yes sir
Thanks Chomper 100% :3
1: D
2: B
3: C
4: D
Hope this helped
To find the 9th term of an arithmetic sequence defined by the rule A(n) = -14 + (n-1)(2), we need to substitute the value of n as 9 into the formula and solve for A(9).
The given formula A(n) = -14 + (n-1)(2) represents the general term of the arithmetic sequence. Here, n represents the position or the term number, and A(n) represents the value of the term at that position.
To find the 9th term (A(9)), we substitute n = 9 into the formula:
A(9) = -14 + (9-1)(2)
First, we simplify the expression within the parenthesis:
A(9) = -14 + (8)(2)
Next, we multiply 8 and 2:
A(9) = -14 + 16
Finally, we add -14 and 16:
A(9) = 2
Therefore, the 9th term of the arithmetic sequence defined by the rule A(n) = -14 + (n-1)(2) is 2.