Answer:
find the value by your nearest round estimate
Answer:
Solution given:
-2x²+7x-6=0
2x²-7x+6=0
Comparing above equation with ax²+bx+c
we get
a=2
b=-7
c=6
By using Vieta's theorem
X1+X2=
=
again
X1X2=
=
=3
I know DBC is 75, but im less positive about the other two. I think ABC is also 75 and BAC is 30, but im really not sure
The average is the sum divided by the count.
144 / 4 = 36
Answer: 36