a mountain's peak is 880 m above sea level while the valley is 139 m below sea level. what is the elevation drop from the top of
2 answers:
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Answer:
Standard form of
Step-by-step explanation:
Here, the given expression is
Now, simplifying the above expression in parts, we get
hence, combining both parts:
=
The above expression is of the STANDARD FORM:
Hence, the standard form of
Given:
The geometric sequence is:
1 -4
2 20
3 -100
To find:
The explicit formula and list any restrictions to the domain.
Solution:
The explicit formula of a geometric sequence is:
...(i)
Where, a is the first term, r is the common ratio and .
In the given sequence the first term is -4 and the second term is 20, so the common ratio is:
Putting in (i), we get
where
Therefore, the correct option is B.