Answer:
yup
Step-by-step explanation:
I total agree with you on this. for me it took finding a true friend who cared about me more than I care about myself at the time. she really listened to my problems and helped me work through them
25,000 + 600 considering they would meet at 0, so they are 25,600 feet apart
5/6 and 2/9......least common denominator is 18
so 5/6 = 15/18 and 2/9 = 4/18
1/12 and 3/8...least common denominator is 24
so 1/12 = 2/24 and 3/8 = 9/24
5/9 and 2/15...least common denominator is 45
so 5/9 = 24/45 and 2/15 = 6/45
Answer:
a) 
With:


b) 

c) 

d) 


Step-by-step explanation:
For this case we know the following propoertis for the random variable X

We select a sample size of n = 81
Part a
Since the sample size is large enough we can use the central limit distribution and the distribution for the sampel mean on this case would be:

With:


Part b
We want this probability:

We can use the z score formula given by:

And if we find the z score for 89 we got:


Part c

We can use the z score formula given by:

And if we find the z score for 75.65 we got:


Part d
We want this probability:

We find the z scores:



Answer:
69.12
Step-by-step explanation: