See picture for solution steps and answer.
(Teaser) The total number of sides in two regular polygons is 13, and total number of diagonals is 25. How many sides are in eac
2 answers:
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The recursive rule is
.
The iterative rule is
The recursive rule is given by the formula
, where d is the common difference. Our common difference is -4, which gives us the recursive rule above.
The iterative rule begins with the formula
, where a₁ is the first term and d is the common difference. Our first term is 10 and our common difference is -4:
The iterative rule is
The recursive rule is given by the formula
The iterative rule begins with the formula
It is prime because it has no common factors in 5a^2 and b.
The answer is A<span>.</span>