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Nikitich [7]
4 years ago
11

What is 4.92/(0.8-0.12/0.3)

Mathematics
2 answers:
tatiyna4 years ago
8 0
0.12/0.3=0.4
0.8-0.4=0.4
4.92/0.4=12.3
Vsevolod [243]4 years ago
7 0
First work out the parenthesis.  Division goes first so 0.12/0.3 = 0.4. 0.8-0.4-0.4. (Sorry for so many dots o_o) 4.92 divided by 0.4 equals 12.3
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How much surface area would be lost if you glued three 4-cm cubes together to make a rod that is three cubes long and one cube w
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Answer:

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Step-by-step explanation:

Part 3) Calculate the total surface area of three 4 cm cubes

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substitute the given value

SA=18(4)^2

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Part 4) How much surface area would be lost if you glued three 4-cm cubes together to make a rod that is three cubes long and one cube wide?

In this case the total surface area of the three glued 4-cm cubes is equal to the area  of  its 14 square faces

so

The surface area lost is equal to

18b^2-14b^2=4b^2

substitute

4(4)^2=64\ cm^2

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