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3 years ago

15. The container shown in the figure is filled with a liquid that weighs 50 g. Find its density.

Mathematics

2 answers:

3241004551 [841]3 years ago

5 0

Answer:

C. 0.006 g/cm³

Step-by-step explanation:

As the units tell you, density is the ratio of mass to volume. The volume of the container is found from ...

V = πr²h = π(10 cm)²(25 cm) = 2500π cm³

Then the density is ...

ρ = (50 g)/(2500π cm³) = 1/(50π) g/cm³

ρ ≈ 0.006 g/cm³

_____

<em>Comment on the problem</em>

The "liquid" has about the same density as air pressurized to 75 psi.

Shalnov [3]3 years ago

5 0

Can someone confirm is this answer is right?

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ElenaW [278]

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<h3>What is a straight line?</h3>

A straight line is a combination of endless points joined on both sides of the point.

We have a straight line:

$-7x+3y=-21.5$

Convert it to the general form given below:

$\rm y=mx+c$

$\rm 3y=-21.5+7x\\\\ \rm y = \frac{-21.5}{3}+\frac{7}{3}x$ or

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For the slope(m') of the PQ line:

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We know the:

$\rm (y-y')=m'(x-x')$

Where (x', y') = (7, 6), we get:

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Thus, the equation of the central street PQ is -1.5x - 3.5y = -31.5

Learn more about the straight line.

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