Answer:
i think it is the first one that is correct
i hope this helped
Step-by-step explanation:
Answer: Choice A
S9 = (9/2)*(2+26)
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The formula is
Sn = (n/2)*(a1+an)
where
Sn = sum of the first n terms (nth partial sum)
n = number of terms
a1 = first term
an = nth term
In this case,
n = 9
a1 = 2 (plug in n = 1 into the formula an = 3n-1 and simplify)
an = a9 = 26 (plug n = 9 into the formula an = 3n-1 and simplify)
So,
Sn = (n/2)*(a1+an)
S9 = (9/2)*(2+26)
will help us find the sum of the first 9 terms of this arithmetic sequence
The distance between the points is 10.4
Answer:
38 pods
Step-by-step explanation:
To find about what this is, divide 228 by 6.
What is the nearest multiple of 60 to 228 without going over?
228 - 180 = 48
What it the nearest multiple of 6 to 48 without going over?
48 - 48 = 0
180 = 6 * 30
48 = 6 * 8
30 + 8 = 38 pods
