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Gary used candle molds, as shown below, to make candles that were perfect cylinders and spheres: A cylindrical mold is shown, the radius of the top circular section of the cylinder is labeled 2 inches and the height of the cylinder is labeled as 4 inches. On the right side of this mold is a spherical mold. The radius of this spherical mold is labeled as 2 inches. What is the approximate difference in the amount of wax needed to make a candle from each of these molds? Use π = 3.14.

16.75 cubic inches
20.93 cubic inches
24.25 cubic inches
33.49 cubic inches

Respuesta :

Yna9141
To determine the difference between the volumes of the waxes used for each of the mold, we calculate for the  volume of each of the mold. 

Cylindrical mold: 
    V = πr²h
where V is volume, r is radius, and h is height. 
Substituting the known values:
     V = π(2 in)²(4 in)
     V = 16π in³ = 50.26 in³

Spherical mold:
    V = 4πr³/3
Substituting the radius to the equation,
    V = 4π(2 in)³ / 3 
    V = 32π/3 in³ = 33.51 in³

The difference is calculated below:
 D = 50.26 in³ - 33.51 in³
 D = 16.76 in³

Hence, the answer is the first choice. 


Horselover66

Answer:

16.75 your first answer

I just got it right on my FLVS quiz

Give the first person brainliest

They did most of the work

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