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Novay_Z [31]
3 years ago
8

A cone-shaped funnel has a diameter of 3.6 in. and a height of 3 in. What is the volume of the funnel? Enter your answer as a de

cimal in the box. Use 3.14 for pi.
Mathematics
2 answers:
enot [183]3 years ago
7 0
Formula:
V=πr²(h/3)

V=3.14*1.8²(3/3)
V=3.14*1.8²
V=3.14*3.24
V=10.1736
Sedbober [7]3 years ago
3 0
V=1/3πr^2h
d=3.6 in.
r=1.8 in.
V=1/3×π×1.8^2×3
V≈10.1736 cubic inches. As a result, the volume of the funnel is 10.1736 cubic inches. Hope it help!
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Answer:

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Step-by-step explanation:

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Find four geometric means between 25 and 800.
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Actually, you have to find four missed terms of geometrical sequence. Denote

a_1=25,\\ a_6=800

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a_2=a_1\cdot r=25r,\\a_3=a_1\cdot r^2=25r^2,\\a_4=a_1\cdot r^3=25r^3,\\a_5=a_1\cdot r^4=25r^4,\\a_6=a_1\cdot r^5=25r^5.

Since a_6=800, you have that 800=25r^5, then

r^5=\dfrac{800}{25} =32,\\r=2.

Now substitude r=2 in each of unknown 4 terms:

a_2=25\cdot 2=50,\\a_3=25\cdot 2^2=100,\\a_4=25\cdot 2^3=200,\\a_5=25\cdot 2^4=400.

Answer: four geometric means between 25 and 800 are 50, 100, 200, 400.

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