Consider the sequence: 3, 8, 13, 18, 23, ...The recursive formula for this sequence is:an = an-1 + 5In a COMPLETE sentence, expl
ain what an and an-1 represent in the formula. Then find a8 . What do you need to know in order to find a8 ?
1 answer:
Answer:
see the explanation
Step-by-step explanation:
we know that
In an <u><em>Arithmetic Sequence</em></u> the difference between one term and the next is a constant called the common difference
we have
Let
------>
------>
------>
------>
so
the common difference between consecutive terms is equal to 5
we can rewrite the formula as
-----> given formula
For n > 1
where
an is the term that you want to find (position n)
a(n-1) is the known term position (n-1)
Find a_8
For n=8
I need to know a_7
or
we know that
The general formula for arithmetic sequence is equal to
where
an is the term that you want to find (position n)
a_1 is the first term
d is the common difference
n is the number of terms
we have
substitute
so
For n=8
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The answer is B
Explaining why it is:
Just count up from 9:30. 5 and 1/2 hours is the answer
It would be the last option, (5, -4)
No this number is not written in scientific notation
In scientific notation, it'll look like
4.8 * 10 ^14
In scientific notation it's 10 ^ n
NOT 100^n
Hope this helps
Answer:
1. a 2. b 3. c 4. d
Step-by-step explanation:
you have to simplify but 2/2 to make the denominator 13 on number 3 and 4