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Luden [163]
4 years ago
9

In complete sentences, explain whether or not it makes sense to say that the density of helium is 0.1785 kilograms per square me

ter.
Mathematics
2 answers:
Elenna [48]4 years ago
8 0

Answer:

No

Step-by-step explanation:

No, it does not make any sense to say that the density of helium is  0.1785 kilograms per square meter because because density of helium, and all the rest of the chemicals, are calculated by unit mass per unit volume as the density is given as:

Density=\frac{Mass}{Volume}

where mass is measured in kilograms and volume is measured in cubic meter.

Thus, the density of the helium will be 0.1785kgm^{-3} that is 0.1785 kilograms per cubic meter.

lubasha [3.4K]4 years ago
5 0
No it does NOT make sense to state density in kilograms per square meter.  Density has to be stated in terms of mass per unit of volume and NOT per unit of area. 
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Sum of 4x^3+6x^2+2x^2-3 and 3x^3+3x^2-5x-5 is
spin [16.1K]

9514 1404 393

Answer:

  7x^3 +11x^2 -5x -8

Step-by-step explanation:

Combine like terms.

  (4x^3+6x^2+2x^2-3) + (3x^3+3x^2-5x-5)

  = (4 +3)x^3 +(6 +2 +3)x^2 +(-5)x + (-3 -5)

  = 7x^3 +11x^2 -5x -8

_____

Noting that the first expression contains two x^2 terms, we wonder if you actually want the sum ...

  (4x^3+6x^2+2x-3) + (3x^3+3x^2-5x-5)

  = (4 +3)x^3 +(6 +3)x^2 +(2 -5)x +(-3 -5)

  = 7x^3 +9x^2 -3x -8

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3 years ago
Gabrielle is cutting a triangular sign with a base of 8 inches. The perpendicular distance from the base of the sign to its vert
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"a doll house" and “I Want a Wife,” by Judy Brady. Read the excerpt from the 1971 article. After reading the article, write a full, well-written paragraph which compares Brady with Nora at the end of the play. What points would Brady and Nora feel similarly about? How can you tell? If Brady were to differ from Nora, how do you think they would be unlike each other?
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Alana deposited $20 in a savings account earning 5% interest, compounded annually.
lakkis [162]

Answer:

Step-by-step explanation:

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3 years ago
What is the product of 2x - 5 and 3x2 + 5x - 7? Write your answer in standard form.
andrew11 [14]

Answer:

a) 6x³ − 5x² − 39x + 35

b) no

Step-by-step explanation:

(2x − 5) (3x² + 5x − 7)

Distribute:

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Distribute again:

6x³ − 15x² + 10x² − 25x − 14x + 35

Combine like terms:

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5x − 2 is the opposite of 2x − 5, so you would get the negative of the answer from part (a).

8 0
3 years ago
Jenna manipulated the equation 4x + 7=10 by adding -7 to both sides.Which of the follolwing properties justifies this manipulati
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Hope it helps!
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