The probability that a randomly selected customer takes more than 10 minutes will be 8.38%
<em><u>Explanation</u></em>
The average or mean
is 8.56 minutes and standard deviation
is 1.04 minutes.
<u>Formula for finding the z-score</u> is: 
So, the z-score for
10 minutes will be.....

Now, according to the standard normal distribution table,
. So.....

So, the probability that a randomly selected customer takes more than 10 minutes will be 8.38%
Answer:

Step-by-step explanation:
rewritten using rational exponents
Answer:
4(5+k)
Step-by-step explanation:
20+4k
20 = 2*10 = 2* 2*5
4k = 2*2*k
The common factors are 2*2 = 4
We can factor out a 4
What is left over is inside the parentheses
4(5+k)
Answer:8.01/0.9=8.9
Step-by-step explanation: