Step-by-step explanation:
the question is not correct
edit it and I will answer u in comments
A=-1 or a=-3 hope this helps
Answer:
z-score = 4.43,
It is a Good day
Step-by-step explanation:
The provided information is:
Mean = $28,286.28
Standard deviation = $1,500
Let x be the sell of department store on Tuesday.
Then, x = $34,924.62
The z-score is define as:
Thus, the Tuesday's z-score is 4.43. So this is usually good day.
Answer:
C
Step-by-step explanation:
When reflecting across the origin, negetives become positives and positives become negetives.
Hope that helps!