10 = 2x5
12= 2x2x3
use the factor tree for both , hope this helps
Answer:
1.625 miles.
Step-by-step explanation:
Molly is raising cows. She has a pasture for them that is 0.65 square miles in area. One dimension of the pasture is 0.4 miles long.
We have to find the length of the other side of the pasture.
Now, area if the pasture = product of it's two dimensions.
So, 0.65 = 0.4L
⇒ L = 1.625 miles. (Answer)
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:
24.4
Step-by-step explanation: