The conditional and its converse that form a true biconditional is; Option A; If x = 19, then 2x – 3 = 35.
A) If x = 19, then 2x – 3 = 35.
Thus, 2(19) - 3 = 35. Thus, this is a true biconditional.
B) If x = 3, then x²= 9.
This is not a true biconditional because x could also be -3.
C) If x² = 4, then x = 2
This is not a true biconditional because x could also be -2.
D) If x > 0, then |x| > 0.
This is not a true biconditional because x could also be negative which less than zero.
Read more about Biconditional Statements at; https://brainly.com/question/17005663
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