Answer:
12/15
Step-by-step explanation:
Answer:

And if we use the normal standard distribution or excel we got:

Step-by-step explanation:
For this case we have the following info given:
represent the mean
represent the standard deviation
represent the sample size
The distribution for the sample size if we use the central limit theorem (n>30) is given by:

And for this case we want to find the following probability:

And for this case we can use the z score formula given by:

And replacing we got:

And if we use the normal standard distribution or excel we got:

Answer:
10 hours
Step-by-step explanation:
shara takes L
Answer:
SAS
Step-by-step explanation:
the two triangles have two congruent sides and one congruent angle