If you're looking for the answers it would be x= 5/4, 2, 11/4
Mean means to average. in order to average, add all the numbers then divide by how many numbers you have.
All these ages add up to 150. because there are 7 ages, divide by 7. this is 21.4 which can be rounded to about 21
46 + 48 + 21 + 12 + 15 + 8 = 150
150 ÷ 7= 21.4285 = 21
Answer:
x=1
Step-by-step explanation:
If the slope is undefined then it is a vertical line through an x-value on the x-axis. These lines have the for x=a. Since the point (1,7) is on the line then the equation is x=1.
The regular exagon (polygon in the figure) is equilateral and equiangular.
You can divide all the sides in triangles...
That thing that measures 5√3 cm is the apotheme.
The apotheme divides the equilateral triangles in half so the halves are 30° - 60° - 90° triangles and then we know that the apotheme is x√3 so...
x√3 = 5√3 -> divide both for √3
x = 5
This is the base of the halves, thus the base of the entire triangle is 10. We find the perimeter of the exagon -> 10*6 = 60 cm
We can find the area = 1/2 * perimeter * apotheme
1/2*60*5√3 = 150√3 cm²
