Answer:
18\cdot36
Step-by-step explanation:
The answer would be 18.125 or 18 1/8
I think its the second one, the answer does not have a definite and, and cannot be put into a ratio.
Answer:
- 4
Step-by-step explanation:
The average rate of f(x) in the closed interval [ a, b ] is

Here [ a, b ] = [ - 2, 2 ]
f(b) = f(2) = 9 ← from table value of f(x) for x = 2
f(a) = f(- 2) = 25 ← from table value of f(x) for x = - 2, thus
average rate of change =
=
= - 4
We have
mean=mu=170
standard deviation=sigma=5
can now calculate the Zmin and Zmax using Z=(X-mean)/standard deviation
Zmin=(165-170)/5=-1
Zmax=(175-170)/5=+1
From normal probability tables,
P(z<Zmin)=P(z<-1)=0.15866
P(z<Zmax)=P(z<+1)=0.84134
P(165<x<175)=P(Zmin<z<Zmax)=0.84134-0.15866= 0.68269