a graphic designer wants to know the number of regions that are formed when circles overlap in particular. can she find a rule t
hat describes how the number of regions increases when another circle is added to the design? how many regions would a design with 6 circles create?
1 answer:
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a = 56
given 28 = a
multiply both sides by 2 to eliminate the fraction
56 = a
As a check
× 56 = 28 ← True