There is no way he can write a bi-conditional because there are only 2 g e n d e r s which are m a l e and f e-m a l e and as such he can't use if and only if due to the fact that all non - m a l e dogs are f e m a l e dogs and v i c e v e r s a.
<h3>What is a biconditional statement?</h3>
A biconditional statement is a statement combing a conditional statement with its converse. So, one conditional is true if and only if the other is true as well.
Now, he wrote a true conditional which is "If 47% of the dogs
at the shelter are f e m a l e, then 53% of the dogs are m a l e."
Now, there is no way he can write a biconditional because there are only 2 genders which are m a l e and f e m a l e and as such he can't use "if and only if" due to the fact that all non - m a l e dogs are f e m a l e dogs and vice versa.
Read more about biconditional statement at; brainly.com/question/17005663
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Answer:
p^2 pm pn mn
Step-by-step explanation:
Using the FOIL Method we get this result
p * p
p * n
p * m
m * n
Answer:
False
Step-by-step explanation:
Answer: Option 'B' is correct.
Step-by-step explanation:
Let the initial concentration be

Let concentration after t= 90 hours be N
Since we have given that Sodium-24 has a half life of 15 hours i.e.

So, According to question,

As we know that

Hence, Option 'B' is correct.