What are the first three terms of the Arithmetic Sequence an=11-3(n-1)?
1 answer:
Answer:
11,8,5
Step-by-step explanation:
an=11-3(n-1)
Let n=1
a1 = 11 - 3(1-1)
= 11 -0
=11
Let n=2
a2 = 11-3(2-1)
= 11 -3(1)
= 8
Let n=3
a3 = 11-3(3-1)
= 11 -3(2)
= 11 -6
=5
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{2x + 3y = 18
x + 7y = 31}
2x+ 3y = 18
x=31-7
2(31-7)+3y=18
y=4
x=31-7*4
x=3
(x,y) = (3,4)
Answer:
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Step-by-step explanation:
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Answer:0,4
Step-by-step explanation: are there multiple choice answers because I wasn’t to make sure this answer is correct
