Answer:
The probability of this event is represented by a value of 1.
Step-by-step explanation:
Probability of a certain event:
The probability of an event that is considered to be certain, that is, guaranteed to happen, is 100% = 1.
You are certain to get a heart, diamond, club, or spade when selecting cards from a shuffled deck.
This means that the probability of this event is represented by a value of 1.
I hope this helps you
y=f (x)=x-7
y=x-7
x=y+7
f^-1 (x)=x+7
Recognize the differnce of 2 perfect squares
a²-b²=(a-b)(a+b)
so
Answer - Yes it’s rational
