Answer:
Step-by-step explanation:
~
Answer:diameter to circumference
YEE YEE
30/28
-6*-5=30
7*4=28
f(x)=x²-1, f(x-1)=(x-1)²-1
=(x-1)(x-1)-1
=(x²-x-x+1)-1
=x²-2x+1-1
=x²-2x=0
x²=2x
x=2