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OpenStudy (anonymous):
WILL GIVE A MEDAL!!!!!!!! PLZ EXPLAIN TOO. Sally made the conjecture that the sum of any two prime numbers is a prime number. Which equation is a counterexample to her conjecture? A. 3 + 11 = 14 B. 2 + 5 = 7 C. 2 + 11 = 13 D. 15 + 4 = 19
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OpenStudy (anonymous):
B 2+5=7
OpenStudy (anonymous):
Wait!
OpenStudy (anonymous):
can u explain it
OpenStudy (anonymous):
A counter example would be a non-prime number so it would be A beucase 14 is not prime
OpenStudy (anonymous):
Prime Numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 etc...
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