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elena-14-01-66 [18.8K]
3 years ago
13

14 A formula for determining the finite sum, S, of an arithmetic sequence of numbers is

Mathematics
2 answers:
allochka39001 [22]3 years ago
6 0

Answer:

You can download the answer here. Link below!

Step-by-step explanation:

Advocard [28]3 years ago
4 0

Answer:

b = 2S/n - a.

Step-by-step explanation:

S=n/2(a + b)

a + b = S / n/2

a + b = 2S/n

b = 2S/n - a.

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LUCKY_DIMON [66]

Answer:

That would be 1

Step-by-step explanation:

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7 0
2 years ago
SOMEONE HELP! I know the answer I just need to show the work.
gayaneshka [121]

okay so

117° + angle a = 180° (supplementary angle)

angle a = 180 - 117

= 63°

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so... 63° + angle b + 81° = 180

144 + angle b = 180°

angle b = 180 - 144

= 36°

hope this helps.

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3 years ago
Can someone please help me with this problem
pychu [463]
Oh wait a minute i have to write this down
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3 years ago
Please give me the correct answer.​
nydimaria [60]

Answer:

The third one which is the one on the bottom to the right under 34 the ont he bottom

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PLEASE HELP QUICK!!!!!! WILL GIVE BRAINIEST!!!!!! Don’t answer if you don’t know it please.
mojhsa [17]
I’m almost 100% sure it is: D. Graph D

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3 years ago
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