I think its b that what it looks like to me
i hope this helps
I am assuming you wrote the problem wrong. Is it a^2?
A^2 -4A-21=0
(A-7)(A+3)=0
A=7 A=-3, ignore the negative number because it doesn't make sense if you plug in for a.
length=a+3=7+3=10
Width=7=a
This intersection means that u have to find the same number in both sets
the answer is 3 , 7 , 13
i am a mathematics teacher. if anything to ask please pm me
Answer:i believe it’s A
Step-by-step explanation:
4,5,3 are almost the same and almost the same rotation just letters are different