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777dan777 [17]
3 years ago
6

A cylinder car for two with a diameter of 8 cm and a height of 20 cm is used to package a gift what is the approximate volume of

YouTube round to the nearest whole cubic centimeter
Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
4 0

V=PI x r^2 x H

V=3.14 x 64 x 20 = 1005 cubic cm

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2 years ago
Can someone please help with this math question:)
Bingel [31]

<u>Solution</u><u>:</u>

The rationalisation factor for \frac{1}{ a -  \sqrt{b}  } is a + \sqrt{b}

So, let us apply it here.

\frac{1}{5 -  \sqrt{2} }

The rationalising factor for 5 - √2 is 5 + √2.

Therefore, multiplying and dividing by 5 + √2, we have

=  \frac{1}{5 -  \sqrt{2} }  \times  \frac{5 +  \sqrt{2} }{5 +  \sqrt{2} }  \\  =  \frac{5 +  \sqrt{2} }{(5 -  \sqrt{2})(5 +  \sqrt{2} ) }  \\  =  \frac{5 +  \sqrt{2} }{ {(5)}^{2} - ( \sqrt{2})^{2}   }  \\  =  \frac{5 +  \sqrt{2} }{25 -  2}  \\  =  \frac{5 +  \sqrt{2} }{23}

<u>Answer:</u>

<u>\frac{5 +  \sqrt{2} }{23}</u>

Hope you could understand.

If you have any query, feel free to ask.

5 0
2 years ago
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Make an approximate conversion from English to metric. <br><br> 9 ft to meters
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Step-by-step explanation:

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2 years ago
NEED HELP IN NEED THE ANSWER BY TO NIGHT PLE.
guapka [62]

Answer:

Step-by-step explanation:

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Cathy paid $62.

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2 years ago
When the original amount is less than the new amount, the percent of change is called a(n)
charle [14.2K]
<span>When the original amount is less than the new amount, the percent of change is called a percent of increase. The original amount is smaller than the new amount and this means that the amount has increased in the positive direction I hope that this answer has actually helped you.</span>
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