3 years ago

Jack has a Rock. The Rock has a mass of 6g and a volume of 3ml. what is the density of The Rock?

Mathematics

1 answer:

Vlada [557]3 years ago

7 0

Step-by-step explanation:

Density = Mass ÷ Volume

= 6 ÷ 3

= 2g/cm³

Answer : 2g/cm³

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malfutka [58]

Answer:

$\frac{4}{5}$

Step-by-step explanation:

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$\frac{4}5}$

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3 years ago

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Multiply (x-1)(x³+4x²+4x-1) and combine like terms. Explain how you reached your answer.

Hitman42 [59]

Answer:

x⁴+3x³ -5x +1

Step-by-step explanation:

To multiply this we are going to <u>multiply each term of the binomial by each term of the polynomial.</u>

$(x-1)(x^{3}+4x^{2} +4x-1)\\=x^4+4x^3+4x^2-x -x^3-4x^2-4x+1$

Now we are going to <u>combine like terms (this means we are going to sum up terms with the same exponent)</u>

$x^4+4x^3+4x^2-x -x^3-4x^2-4x+1 = x^4 +(4x^3-x^3)+(4x^2-4x^2)+(-x-4x)+1\\=x^4+3x^3-5x+1$

Thus, the answer is x⁴+3x³ -5x +1

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3 years ago

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Answer:

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Answer:

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Step-by-step explanation:

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