Answer:
The means for times for the first round of the 100 meter men’s swim is 52.64789 seconds
The satandar deviation for times for the first round of the 100 meter men’s swim is 7.60182 seconds
Step-by-step explanation:
The sample mean for a set of n data is given by:

In other words, the sample mean of the times for 71 times of the first round measured in seconds is:
seconds
The sample standard deviation for a set of n data is given by:

In other words, the sample standard deviation of the times for 71 times of the first round measured in seconds is:
seconds
For this case we have a function of the form
Where:

We must find the value of the function when the variable x is -5.
Then, substituting, 

We have that by sign law

Answer:

Answer:
Its A or B
Step-by-step explanation:
relax take a deep breath it is between A or B
just know its not c or d
i had to check my answer .
Answer:
-5/3
Step-by-step explanation:
The slope of a line is found by
m = (y2-y1)/(x2-x1)
= (13- -12)/(-3 -12)
= ( 13+12) / (-15)
25/-15
-5/3
To find the area, multiply 9 and 12.
Answer: The area of the rectangle is 108cm^2.