Lincoln has a coin collection. He keeps 3 of the coins in his box, which is 5% of the collection. How many total coins are in hi
s collection?
2 answers:
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Answer: or
Step-by-step explanation:
You can find the area of a regular hexagon with the following formula:
Where "s" is any side of the regular hexagon.
For this hexagon you know that the length of each side is 4 inches. Then, you must substitute into the formula
.
Therefore, the area of this regular hexagon is:
or
ANSWER
EXPLANATION
The given sequence is
3,-5,-13,.....-229.
The first term of this sequence is
a_1=3
There is a common difference of
The last term of this sequence is -229.
The nth term of this sequence is given by:
We use the last term to determine the number of terms in the sequence.
Divide through by -8;
Hence there are thirty terms in the sequence.
The sum of the first n terms is given by:
The sum of the first 30 terms is given by: