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svet-max [94.6K]
2 years ago
10

What is the volume of this cone? work shown plsss ❤️

Mathematics
1 answer:
bulgar [2K]2 years ago
4 0

Answer:

41.888{ft}^{3}

Step-by-step explanation:

Consider the equation for volume of a cone,

v =  \frac{1}{3} \pi {r}^{2} h

and also note that the radius is half the diameter so in this case

r = 2

Now we want to plug in known values and solve for v through simple algebra,

v  =  \frac{1}{3} (\pi)( {2})^{2} (10)

=  \frac{\pi \times 4 \times 10}{3}

=  \frac{40\pi}{3}

when plugged in on a calculator,

v = 41.888

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Uhh help lol<br> 5.3x + y = 28.5 <br> 4.2x + 3.1y = 27.2<br> find x and y
navik [9.2K]

Answer:

x = 5, y = 2

Step-by-step explanation:

First, isolate y in the top equation.

y = -5.3x+28.5

Next, substitute y in the bottom equation.

4.2x + 3.1(-5.3x + 28.5) = 27.2

5.3x + y = 28.5

Simplify.

4.2x + -16.43x + 88.35 = 27.2

Combine like terms.

-12.23x + 88.35 = 27.2

Isolate x on one side.

-12.23x = -61.15

Isolate x.

x = 5

Substitute x into 5.3x + y = 28.5

5.3(5) + y = 28.5

Simplify.

26.5 + y = 28.5

Isolate y.

y = 2

x = 5 \\y = 2

6 0
3 years ago
Explain what i did in a detailed answer.
forsale [732]

Answer:

Step-by-step explanation: You added the following numbers multiplied the product by 5 = 17 and then you abbrieviated it and reapeated the process

3 0
2 years ago
Evaluate the summation of negative 5 n minus 1, from n equals 3 to 12..
NARA [144]

The summation of negative 5 n minus 1, from n equals 3 to 12 can be expressed as

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-5( 3/12 ) -1

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3 years ago
Anyone know this problem???
sammy [17]

Answer:

2

Step-by-step explanation:

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