Find the thirtieth term of the following sequence. -6, -4, -2, 0, ... 52 64 66
First, you must find the number series that those numbers follow. Do you know how to find this?
Nope, im jus tryina do my work soo i can go home nd have a good B-Day
whats the difference between a -6 and a -4? difference between -4 and -2 ? difference between -2 and 0 ?
+2
Happy birthday! I'll make it a simple version then. To find the number series expression, you must find the difference between each number, which in this case is 2. Now the beginning value is -6, so (something)+2n (n being the number of the term in the series. To find what the (something) is, you plug 1 in for n and solve, setting it equal to the first term: x+2(1)=-6 x=-8 So your beginning number of the number series is -8, and the difference between each number is +2, so the number series looks like this: x=-8+2n.
the formula is : an = a1 + (n - 1) * d a1 is first term = -6 n = the term you want to find = 13 d = the difference between the numbers = 2 now plug all your stuff into the formula
Soo thebanswer is?....., im guessing 64?
the answer**
x=-8+2n. Plug 30 in for n and solve.
Okk & Ty
a13 = -6 + (13 - 1) * 2 a13 = -6 + 12 * 2 a13 = -6 + 24 a13 = 18 <-- 13th term are you looking for the 13 term or the sum ?
It's the 30th term.
oh...my bad.....I feel stupid now
Don't worry. I read it as 13th too at the beginning...
Happy Birthday @LaDarriusWatson
Ty ;)
Im jus turning 16
sorry about the mess up I made on your question......16th birthday....hmmm...don't party too hard ...lol
Lmao
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