Mathematics, 24.08.2019 19:00 milkshakegrande101

Cynthia made the conjecture that the sum of any prime number and any composite number is a composite number.
which equation is a counterexample to her conjecture?
a.
11 + 2 = 13
b.
5 + 8 = 13
c.
13 + 2 = 15
d.
11 + 9 = 20

Answers: 1

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Cynthia made the conjecture that the sum of any prime number and any composite number is a composite number. which equation is a counterexample to her conjecture? a. 11 + 2 = 13 b. 5 + 8 = 13 c. 13 + 2 = 15 d. 11 + 9 = 20

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Cynthia made the conjecture that the sum of any prime number and any composite number is a composite number.
which equation is a counterexample to her conjecture?
a.
11 + 2 = 13
b.
5 + 8 = 13
c.
13 + 2 = 15
d.
11 + 9 = 20