B. It is false because at least one part of the biconditional is false.
While a number that is divisible by 10 is also divisible by 2, a number that is divisible by 2 is not necessarily divisible by 10. Therefore, the biconditional statement is false.
Test the conditional statement and its converse to determine whether the following biconditional is true.
A number is divisible by 10 if and only if it is divisible by 2.
A.
It is true because at least one part of the biconditional is true.
B.
It is false because at least one part of the biconditional is false.
C.
It is true because both parts of the biconditional are true.
D.
It is false because both parts of the biconditional are false.
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