Answer:
38
Step-by-step explanation:
Make a chart
20 = 4850
? = 9215
9215 / 4850 = 1.9
20 x 1.9 = 38
I don't know it this is right but I hope it helps
Answer:
2.35%
Step-by-step explanation:
First, calculate the difference between mean and the months in the problem:
first month :59 – 26 = 33
second motnh: 59 – 37 = 22
Since standard deviation is 11 months, for the first month is a difference of 3 standard deviation and for the second is 2 standard deviation.
the 68-95-99.7% rule establish that:
1 standard deviation means a 68% of total area under the normal distribution. On one side is half = 34%.
2 standard deviations means a 95% of total area under the normal distribution. On one side is half = 47.5%.
3 standard deviation means a 99.7% of total area under the normal distribution. On one side is half = 49.85%.
The difference between 3 and 2 standard deviation is
49.85 – 47.5 = 2.35%
The answer is 2.35% of cars that remain in service between 26 and 37 months
Answer:
Step-by-step explanation:
Distance Formula:
Simply plug in your 2 coordinates into the distance formula to find distance <em>d</em>:
I don't know if this is how i'm supposed to explain it, but AC is twice the size of DF, and DF is twice the size of CF
Pretend that DF is 2 inches, then AC is 4 inches and CF is 1 inch, so you get this: