Answer:87.63
Step-by-step explanation:
Answer:
7ft ? Step-by-step explanation: i mean if u go down 12 and come up 5 thats subtraction so 12-5 is 7
Since you didn't give an amount of time, we can't give an exact value. However, I can help you with the steps so you can get the correct answer.
First, you need to find the correct z-score. Then, use a standard normal distribution table to find the percent.
Let the time that you are looking for equal X.
The formula for your z-score is:
(x - 8.7) / 2.1 = z-score
