Answer:
80°
Step-by-step explanation:
Just multiply 40° by 2 to get the arc
Answer:
Ste-by-step explanation:
That doesn’t answer it stupid
Answer:
B) m = 2 , b = -3
Step-by-step explanation:
b = y-intercept
The y-intercept is -3
b = -3
m = slope
The slope is 2
m = 2
SOLUTION
The mean is 4min
standard deviation is 1min
the z score is

where

then we have

The probability the call lasted less than 3 min will be
Therefore, the probability that (z < -1 ) is
[tex]\begin{gathered} Pr(z<-1)=Pr(0
Hence, the percentage of the calls that lasted less than 3 min is 16%
An accurate estimate is anywhere from 0.06 to 0.07. The exact answer is 0.06921568627.