Answer:
and this Z-score is “unusual.”
Step-by-step explanation:
To calculate the Z score use the following formula

Where
μ is the average
is the standard deviation
x is the data to which we will calculate the z-score
In this case

So


A z-score is unusual if
or 
Finally
and this Z-score is “unusual.”
Answer: 3
Why: When exploring the polynomial functions, the degree is the highest exponent
T is less then or equal to 10 equals 100
Step-by-step explanation:
(2b-3)/(b-2)(b+2) = 3b(b-2)/(b+2)(b-2)
2b²+4b-3b-6/b²-4=3b²-6b/b²-4
2b²+b- 6= 3b²-6b
move square to square unknown to unknown
-b²+7b-6/b²-4
i also dk this is true or false