We can always split a regular polygon with 
sides into triangles, whose base is the side of the polygon and whose height is the apothem of the polygon. So, the sum of the areas of all these triangles is
where is the number of sides, 
is the side length, and 
is the apothem length.
So, you just need to plug you values in: in your case, you have 
So, the formula becomes
Answer: In both options, you should play game number 1 with a winning mean score of 3.25 to 3.75.
To find the average when you roll a die, you need to about up all the values in the set and divide by the number of data points.
In this case, 1 + 2 + 3 + 4 + 5 + 6 = 21 / 6 = 3.5
Since the mean is 3.5, that is what you are most likely to average for your score. Regardless of the number of rolls, this is most likely. Therefore, select the first game.
Answer:
12 and 16
Step-by-step explanation:
it just means what ever number is greater
Answer:
see explanation
Step-by-step explanation:
32 - 7x = 2x - 3(4x - 5) ← distribute parenthesis
32 - 7x = 2x - 12x + 15
32 - 7x = - 10x + 15 ( add 7x to both sides )
Anna made her error here in that she subtracted 7x from both sides
32 = - 3x + 15 ( subtract 15 from both sides )
17 = - 3x ( divide both sides by - 3 )
- 
= x ← is the solution
I'm not sure what you mean by the five step plan, but to get the answer, just think about the clues.
(c = number of cats)
8 fewer dogs than cats can be written: c - 8
since we know how many dogs there are: c - 8 = 12
Now, just solve for the variable: c = 20
Hope I helped :)
