Answer:
1) 
2) 
3) 
Step-by-step explanation:
Given the expression we have to simplify the expression
1) 
⇒ 
Combining like terms, we get
⇒ 
2.) 
⇒ 
⇒ 
3.) 
⇒ 
⇒ 
Answer:
4.1, 2.21, 0.25,0.042
Step-by-step explanation:
you have to add a 0 onto the first one because it will bring it to be equal to most of the others
Answer:
29.49% probability that a production time is between 9.7 and 12 minutes
Step-by-step explanation:
An uniform probability is a case of probability in which each outcome is equally as likely.
For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.
The probability that we find a value X between c and d, in which d is greater than c, is given by the following formula.

Production times are evenly distributed between 8 and 15.8 minutes and production times are never outside of this interval.
This means that 
What is the probability that a production time is between 9.7 and 12 minutes?
.
So


29.49% probability that a production time is between 9.7 and 12 minutes