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andre [41]
3 years ago
15

Can someone help me to find the volume please !!! Step by step !

Mathematics
1 answer:
Elan Coil [88]3 years ago
3 0
To find a volume of a cylinder you use the formula pi r^2 h. You have h=18.75 but are missing r. To find r you make a right triangle. Then use A^2 +b^2=c^2; where a =18.75 b=diameter, and c=21.25. After solving you get the diameter equals 10. Now cut that in half to get the radius =5. Now you can use the volume equation. Plugging in you have pi*(5)^2*18.75. This will give you 1472.62m^3
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Evaluate. –1.65 + (–3.4)
elena55 [62]
Hey there! 

This seems like a algebraic expression

SO,
Remember: negative and negative = positive
                      positive and positive = positive
                     positive and negative = negative
                       negative and positive = negative

In this problem we will be doing negative and negative so that means our answer will be a negative 

Firstly, lets line up our decimals to solve this problem (once when you do that , you can solve it easier)

-1.65 
\\ +
\\ (-3.4)


Answer: 
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Good luck on your assignment and enjoy your day

~LoveYourselfFirst:)
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4 years ago
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Step-by-step explanation:

8 0
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2x^2-12x+19 - Your Answer

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2x^2-12x+18+1

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5 0
3 years ago
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Varvara68 [4.7K]
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Answer:

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Step-by-step explanation:

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