Answer:
1
Step-by-step explanation:
The expression that represents the volume of the frustum, Volume of larger cone - volume of smaller cone, is: C. ⅓π(7.5²)(19) - ⅓π(3.5²)(8) .
<h3>What is the Volume of a Frustum?</h3>
Volume of a frustum = Volume of larger cone - volume of smaller cone = ⅓π(R²)(H) - ⅓π(r²)(h)
Given the cone in the digram below with the following parameters:
R = 7.5 units
H = 8 + 11 = 19 units
r = 3.5 units
h = 8 units
Volume of the frustum = ⅓π(7.5²)(19) - ⅓π(3.5²)(8)
Learn more about volume of frustum on:
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Exponent hope this helps m8
Answer:
15
Step-by-step explanation:
45 divided by 3 equals 15
45 ÷ 3 = 15
Answer:
53.1°
Step-by-step explanation:
Let x represent the wangle of elevation from B to C
Reference angle = x
Opposite side to x = 16 - 4 = 12
Adjacent = 9
Apply trigonometric ratio to find x.
Thus:
![tan(x) = \frac{12}{9}](https://tex.z-dn.net/?f=%20tan%28x%29%20%3D%20%5Cfrac%7B12%7D%7B9%7D%20)
![x = tan^{-1}(frac{12}{9})](https://tex.z-dn.net/?f=%20x%20%3D%20tan%5E%7B-1%7D%28frac%7B12%7D%7B9%7D%29%20)
(nearest tenth)
Angle of elevation from B to C = 53.1°