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Rus_ich [418]
3 years ago
8

Find the volume of a right circular cone that has a height of 6.7 in and a base with a circumference of 9.8 in. Round your answe

r to the nearest tenth of a cubic inch.
Mathematics
1 answer:
bulgar [2K]3 years ago
7 0

We just did one like this; let's do this a different way.

V=\frac 1 3 \pi r^2 h

2 \pi r = 9.8 \textrm{ in}}

r = 9.8 / (2 \pi) \approx 1.55972

V=\frac 1 3 \pi r^2 h = (1/3) \pi (1.55972)^2(6.7) = 17.01

Answer: 17.1 cubic inches

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Answer:

x=1,y=3,z=1

Step-by-step explanation:

4x-4y+4z=-4

4x=-4+4y-4z

x=-1+y-z

Substitute  x=-1+y-z into second equation:

4\left(-1+y-z\right)+y-2z=5

-4+4y-4z+y-2z=5

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4 0
3 years ago
three different are rung at intervals of 36 minutes 40 minutes and 48 minutes if they were rung together at 9 a.m. at what time
Lena [83]

To find the time in which all the bells ring together, we need to find the LCM of 36,40,48.

Prime factorization of 36=2×2×3×3

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Prime factorization of 48=2×2×2×2×3

Hence, LCM of 36,40,48=2×2×2×2×3×3×5=720 seconds.

 

720seconds=  

60

720

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minutes=12minutes

Hence, all the bells will ring together after 12 mi

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