The answer for this question is B
First, find the mean. You'll need it to compute the variance.

The variance of the sample is then computed with the formula

The standard deviation is the square root of the variance, so
Answer:
The surface area of the gift box that Kira decorates is 
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
A cube has six square faces
The surface area of a cube is equal to the area of the six squares faces

where
b is the length side of a cube
In this problem we have

substitute


Answer:
The volume of the container is = 8138.88 cubic centimeters
Radius of the cone = 4 cm
Height of the cone = 9 cm
Volume of the cone =
So putting the values as pi=3.14 , r=4 and h=9 we get
= 150.72 cubic cm
So, the number of times the cone can be filled is =
The number of times is = 54.
Step-by-step explanation:
54 is your answer
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