An arithmetic sequence is given below.
1 answer:
Answer:
Step-by-step explanation:
The nth term of an arithmetic sequence is given by the formula:
Where
a is the first term
d is the common difference
a is given as 12
To find d, we subtract any term from the term after it. So
d = 16 - 12 = 4
Now, the explicit formula for nth term is:
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A=1/3h(b1-b2). So h=3/(b1-b2)
Should be one of the squared answers as x try plugging it back into the original equation
6 + 7b - 7 = 5 + b
7b - 1 = 5 + b
7b = 5 + b + 1
7b = b + 6
7b - b = 6
6b = 6
b = 1
Answer: B)
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Step-by-step explanation:
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