Let me break this down a little bit:
Joe has a savings account with $422 in it.
He also has a credit card, meaning that whatever he spends on his credit card, he'll have to pay back later.
So far, he has purchased $524 worth of merchandise.
If you subtract $422 from $524 it will equal =$122 he owes.
Therefore, Joes overall balance is reflected as a POSITIVE number.
The $122 dollars is represented as what he owes which would be a NEGATIVE number.
The ultimate answer to this question is POSITIVE.
Hope this helps! :)
Its A.
hopefully this helped!!!!!
Answer:
C
Step-by-step explanation:
Answer:
The standard deviation of given data is 12.36
Step-by-step explanation:
We are given the following data in the question:
40, 12, 17, 25, 9, 46, 13, 22, 16,7
Formula:
where are data points, is the mean and n is the number of observations.
Sum of squares of differences =
372.49 + 75.69 + 13.69 + 18.49 + 136.89 + 640.09 + 59.29 + 1.69 + 22.09 + 187.69 = 1528.1
Thus, the standard deviation of given data is 12.36
The approximate number system (ANS) is a cognitive system that supports the estimation of the magnitude of a group without relying on language or symbols.