Which of the following recursive formulas represent the same arithmetic sequence as the explicit formula an=5+(n-1)2
2 answers:
Answer:
Choice A:
Step-by-step explanation:
means we looking for first term 5 and the sequence is going up by 2.
In general,
means you have first term and the sequence has a common difference of d.
So it is between the first two choices.
The explicit form of an arithmetic sequence is:
An equivalent recursive form is
So d again here is 2.
So choice a is correct.
Answer: Option a
Step-by-step explanation:
The arithmetic sequences have the following explicit formula
Where d is the common difference between the consecutive terms and is the first term of the sequence:
The recursive formula for an arithmetic sequence is as follows
Where d is the common difference between the consecutive terms and is the first term of the sequence:
In this case we have the explicit formula
Notice that in this case
Then the recursive formula is:
The answer is the option a.
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I think it is c but that is just an educated guess.
It's a. 3.
because
3+6x=21
6x=18
x=3.
You can only simplify it, because you can't add a number with x to a number without, so it would be 7x+7
Answer:
55
because 4x and 1 are alt exterior angles
Step-by-step explanatio
125+4x-5=180
4x-5=55
4x=60
x=15
4(15)-5
55= angle 1
The answer to your problem is a<-2