The answer is 4 x^2y. <em> I cannot explain to you how I know I'm right. I'm the type of person who HAS to do the work in their head . I am a very experienced person in any Mathematics area. I am NOT saying I'm an expert , but it is one of my strongest subjects . </em>
Answer:
True
Step-by-step explanation:
x=5+7=12
The only solution is x=12.
Answer:
2
Step-by-step explanation:
Given
See attachment for chart
Required
Number of off days
To do this, we simply calculate the expected value of the chart.
This is calculated as:

Where
x = days
f = chances
So, we have:



D. Aidan’s
The larger the sample size (number of people asked), the more accurate the results generally are, due to the law of large numbers.