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Lemur [1.5K]
3 years ago
12

Write an equation for the nth term of the arithmetic sequence. Then find a10.

Mathematics
2 answers:
VikaD [51]3 years ago
8 0

Answer:

here a1=10

d=a2-a1

d=0-10=-10

as we know that

an=a1+(n-1)d

by putting n=10

a10=a1+(10-1)d

a10=10+9(-10)

a10=10-90

a10=-80

Step-by-step explanation:

Alexxx [7]3 years ago
5 0

Answer:

AP: 10, 0, -10, -20...

a = 10, d = -10

nth term of the AP = a + (n-1)d

= 10+ (n-1)-10

= 10 - 10n + 10

= 20 - 10n

a10 = 20-10(10)

= 20 - 100

= -80

Hope this helps!

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