The mean is 250.875.
Using this information, I can put the following into a calculator:
√(((250.875-195)²+(250.875-358)²+(250.875-201)²+(250.875-276)²+
(250.875-161)²+(250.875-301)²+(250.875-387)²+(250.875-128)²)÷8)
Which equals:
87.9878
This is the standard deviation of the MP3 players.
Answer:
Dividing logarithms is not the same as dividing the arguments of a logarithm.
Step-by-step explanation:
1) If we divide two logarithms then we'll find a value. This is not the same as dividing two arguments of the same base logarithms.
For example:

Then

2) Completing the table below to show it clearly:
Answer:
7/20
Step-by-step explanation:
GIven:
Battery A = 4/5 remaining
Battery B = 9/20 remaining
assuming both batteries are otherwise identical (except for charge level remaining), then,
Battery A - Battery B
= 4/5 - 9/20
we need to convert both fractions to same denominator to perform the subtraction easily. Note that the Least Common Multiple for 5 and 20 is 20, hence we convert both denominators to 20,
Battery A - Battery B
= 4/5 - 9/20
= (4/5) (4/4) - 9/20
= 16/20-9/20
= 7/20
15.2 yards
because you multiply 1 1/5 times 5 times 3 and get your answer.
The formula is L times W times H
-2 would at the end equal zero
2 at the end would equal -480
so i would go with the x=-2