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hoa [83]
3 years ago
13

Please do all four, thanks :) I'm feeling generous today *40 points*

Mathematics
2 answers:
MrMuchimi3 years ago
8 0

Step-by-step explanation:

A. x^2-9x+18

B. x^2-8x+16

C. 2x^2-5x-12

D. 12x^2-31x+7

Lady bird [3.3K]3 years ago
5 0

Answer:

I answered my own brainly question :)

Step-by-step explanation:

Hi

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An 18-meter-tall cylindrical tank with a 4-meter radius holds water and is half full. Find the work (in mega-joules) needed to p
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Answer:

W = mgh

W = 226290 x 9.8 x 9

W = 19958778Joules

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Step-by-step explanation:

Work to full the tank is

W = mgh.

m is the mass of the water.

But density = mass/volume, where volume is the volume of the complete the remaining half full of water to fill the cylindrical tank.

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Volume = 226.29m3.

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W = 19958778Joule = 19.958778MegaJoules

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Step-by-step explanation:

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