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
The reciprocal is just the fraction flipped over. 7/6 flipped is 6/7.
X= 130 degrees since 180 is the total minus 50 from above
The slope is 4/3.
rise/run
rise = 4
run = 3
Answer:
its infinite solution
Step-by-step explanation: