Answer:
Boys : 210
girls: 240
Step-by-step explanation:
7+8=15
450/15=30
boys: 30*7= 210
girls: 240
to make sure......
210+240=450
The answer is C
1/2(5x + 12)
because the perimeter is equal 20x + 6
Answer:
The formulas are functionally the same, but 'n' (the sample size) is used instead of 'N' (the population size).
Step-by-step explanation:
The sample mean is the average value for a set of observations which is derived from a population. While the population mean is the average value for the entire set of observation belonging to a particular study of interest.
The set of observation belonging to a population is denoted by 'N' ; while the sample size is denoted as 'n' :
The mean formula is written thus :
Population mean = Σx / N
Sample mean = Σx / n
Where, x = set of values.
- 14 is <span>a rational number as it is equal to.. -14/1 ...
so in this way we get it in the form of p/q ...
Hope it helps !!!</span>
It’s B. (Note: The image below isn’t mine but I can assure you it is B)
