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Mila [183]
2 years ago
13

A cylinder has a radius of 3 cm and a height of 4cm. what formula would be used to find the volume

Mathematics
1 answer:
mixas84 [53]2 years ago
8 0

Answer:

required formula: πr^2h

Solution

Formula to find volume of cylinder= πr^2h

= 22/7 ×3×3×4

= 113.14cm^3

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27
katrin2010 [14]

Answer:

A  ≈ 35.3 units²

Step-by-step explanation:

Calculate the radius CB using Pythagoras' identity in the right triangle.

CB² + AB² = AC²

CB² + 6² = 9²

CB² + 36 = 81 ( subtract 36 from both sides )

CB²  = 45 = r²

Then area of quarter circle is

A = \frac{1}{4} × πr² = \frac{1}{4} × π × 45 ≈ 35.3

6 0
3 years ago
An FM radio station broadcasts at 84 megahertz (MHz). What is the energy of each photon in Joule? Use h = 6.6 * 10 ^ (- 34) * j
iragen [17]

Answer:

E=5.544*10^{-26} J

Step-by-step explanation:

The equation for photon energy is given by:

E=hf

Where:

h=Planck\hspace{3}constant=6.6*10^{-34} \\f=Frequency\hspace{3}of\hspace{3}the\hspace{3}wave=84000000Hz

This equation telling us that the higher the frequency of the photon, the greater its energy. And the longer the photon wavelength, the lower its energy.

So, replacing the data provided in the previous equation:

E=(6.6*10^{-34} )*(84000000)=5.544*10^{-26} J

7 0
3 years ago
You use a juice mix to make orange juice. You combine 12 ounces of the mix with 36 ounces of water. Which is a unit rate that de
emmasim [6.3K]
12 ounces of juice mix         1 ounce of juice mix
__________________ = __________________
36 ounces of water             3 ounces of water

For every ounce of juice mix, there are 3 ounces of water. 

Hopefully, this answers your question.
5 0
4 years ago
Read 2 more answers
HELP it needs good reasoning
Sidana [21]

Answer:

Company B.

Step-by-step explanation:

On the graph, when x is 1, y is 50. That means it is $50 for one window. On the chart, when there is 1 window, the cost is $55. So, company B is more expensive!

5 0
3 years ago
What decimal is equal to 31/100
BlackZzzverrR [31]

Answer:

0.31

Step-by-step explanation:

So if you divide 31 by 100 all you have to do is move the decimal from right to left the number of zeros you have. Here we have 2 zeros so we move from right to left twice.

0.31

4 0
3 years ago
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