Answer: 215.6 meters
Step-by-step explanation:
Formula of a polygon: A= 1/2ap
a = apothem
p = perimeter
Since the polygon has 7 sides, you need to multiply 7 by 7.7 (side length) to find the perimeter which would be 53.9
A= 1/2 x 8 x 53.9
A = 215.6 meters
Answer:
-2+2= 0
Step-by-step explanation:
he's incorrect bc 2 is greater than 0. so the sum is less than one of the numbers in the equation
Answer:
7 Chairs in each row
Step-by-step explanation:
Cohen's d is calculated according to the formula:
d = (mean difference) / standard deviation
0.5 = mean difference / 12
Therefore, mean difference = 6
Since we have a population mean of 80, the sample mean must be 80 + 6 = 86.
1:100 could be an example of a ratio comparing to 100
