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Svet_ta [14]
4 years ago
11

S=n/2 [a+(n-1)d]make a subject​

Mathematics
1 answer:
faust18 [17]4 years ago
6 0

s = \dfrac n 2 (a + (n-1) d)

\dfrac{2s}{n} = a + (n-1)d

\dfrac{2s}{n} -(n+1)d = a

We could expand this further but let's call it done.

Answer: a = 2s/n - (n+1)d

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8 0
3 years ago
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6 0
4 years ago
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Please answer both questions quickly! will give brainliest to both right answer!!
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Answer:

F

There is about half a chance so 4 would be the closest to half. Hope this helps.

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3 years ago
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