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Arlecino [84]
3 years ago
15

Perform this operation and report the answer to the correct number of significant figures: What is the mass of a cube of aluminu

m that is 4.0 cm on each edge? The density of aluminum is 2.7 g/cm^3. Show all calculations leading to an answer.
Mathematics
1 answer:
KIM [24]3 years ago
6 0
The answer is 172.8 g.

The volume of the cube (V) is:
V = a³            (a - the side of the cube)

The density (D) <span>is quotient of mass (m) and volume (V):
D = m/V = m/a</span>³
⇒ m = D · a³
<span>

It is given:
D = 2.7 g/cm</span>³
a = 4 cm
Therefore:
m =  D · a³ = 2.7 · 4³ = 172.8 g
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Answer:

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Step-by-step explanation:

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3 0
3 years ago
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sveticcg [70]

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Step-by-step explanation:

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Rewriting as

(3x^3) ^2 - ( 4y^3) ^2

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Serggg [28]

Answer:

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Step-by-step explanation:

The line of reflection is at <em>y = −</em><em>2</em>,<em> </em>so looking at the line and where the coordinates of the shape are, you will have this:

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<em>Q</em>[2, −4] → <em>Q</em>'[2, 0]

<em>?</em>[0, −5] →<em> </em><em>?</em>'[0, 1]

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I am joyous to assist you anytime.

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4 years ago
+ → Co
saveliy_v [14]

Answer: 43% increase

Step-by-step explanation:

You are welcome :)

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10-|-1|
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