Answer:
no
Step-by-step explanation:
if it was a factor then, 2-3x = 0
x= 2/3
putting x = 2/3 in eqn,
(2/3)^2 - 2/3 +1 =7/9....so it is not a factor
Answer: 11.9%
Step-by-step explanation:
Given : On a stretch of Interstate-89, car speed is a normally distributed variable with
mph and
mph.
Let x be a random variable that represents the car speed.
Since , 
z-score corresponds x = 73 , 
Required probability :

[using z-value table.]
Hence, the approximate percentage of cars are traveling faster than you = 11.9%
the answer is 72
let me know if you need an explanation