Which is more economical: purchasing the economy size of a detergent at 7 kilograms for $7.15 or purchasing the regular size a
t 920 grams for 60cents?
Select the correct choice below and fill in the answer box to complete your choice.
(Round to four decimal places as needed.)
A.
Purchasing the economy size is more economical because the economy size costs $
____ less per gram.
B.
Purchasing the regular size is more economical because the regular size costs $
_____ less per gram.
Select the correct choice below and fill in the answer box to complete your choice.
(Round to four decimal places as needed.)
A.
Purchasing the economy size is more economical because the economy size costs $
____ less per gram.
B.
Purchasing the regular size is more economical because the regular size costs $
_____ less per gram.
1 answer:
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I'm assuming this is multiple choice and you forgot to post the answers. I'll take a guess and say it probably looks something like this:
Because you can't take the square root of a negative number without getting an imaginary result, resulting in the function having a closed domain limit.
Because you can't take the square root of a negative number without getting an imaginary result, resulting in the function having a closed domain limit.
Answer:
The standard deviation of the data set is .
Step-by-step explanation:
The Standard Deviation is a measure of how spread out numbers are. Its symbol is σ (the greek letter sigma)
To find the standard deviation of the following data set
we use the following formula
Step 1: Find the mean .
The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation we have:
Step 2: Create the below table.
Step 3: Find the sum of numbers in the last column to get.
Step 4: Calculate σ using the above formula.
