Find the 9th term of the sequence described by: A(n)=7+(n-1)(3)
A. 42
B. 9
C. 31
D. 27
Can't seem to find this particular question anywhere on the internet and can't solve it through any of the calculator's I've tried. At the very least I'd like to have the answer out there in case anyone else gets stumped and needs help.
Turns out the answer was 31...
A(9) = 7 + (9-1)(3)
= 7 + 24 = 31
To find the 9th term of the sequence described by the formula A(n) = 7 + (n-1)(3), we can substitute the value of n as 9 into the formula and simplify the expression.
A(9) = 7 + (9-1)(3)
A(9) = 7 + 8(3) [Simplify within the parentheses]
A(9) = 7 + 24 [Multiply]
A(9) = 31 [Add]
Therefore, the 9th term of the sequence is 31.
The correct answer is C. 31.
To find the 9th term of the sequence, we can use the formula provided: A(n) = 7 + (n-1)(3).
To do this, substitute n with 9 in the formula: A(9) = 7 + (9-1)(3).
First, let's simplify the expression inside the parentheses: A(9) = 7 + (8)(3).
Next, perform the multiplication: A(9) = 7 + 24.
Finally, add the numbers together: A(9) = 31.
Therefore, the 9th term of the sequence is 31, which corresponds to option C.