Answer: 0.6065
Step-by-step explanation:
Given : The machine's output is normally distributed with


Let x be the random variable that represents the output of machine .
z-score : 
For x= 21 ounces

For x= 28 ounces

Using the standard normal distribution table , we have
The p-value : 

Hence, the probability of filling a cup between 21 and 28 ounces= 0.6065
All you've got to do is write an equation. EX 2n-1
Answer:
Yes, 2 is a rational number.
Answer:
Step-by-step explanation:
∠DEF=90-58.2=31.8°