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FrozenT [24]
3 years ago
15

Put these substances in order of density with the most dense first and the least dense last.

Mathematics
1 answer:
stira [4]3 years ago
5 0

Answer:

iron

rubber

cotton ball

helium

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HELLPPPP !!!!!!!!!!!​
balu736 [363]

Answer:

the answers are options 1, 2, and 5.

3 0
3 years ago
- (3 x 100) + (7 x 10) + (4 x D) + (2 x 100)​
Vlad1618 [11]

Answer:

70 + 4D

Step-by-step explanation:

- (2 x 100) + (7 x 10) + (4 x D) + (2 x 100)

   - (200) + (70) + 4D + 200

       -200 + 70 +4D + 200

             -130 + 4D + 200

                   70 + 4D

5 0
3 years ago
The volume of a cone is 3πx3 cubic units and its height is x units. Which expression represents the radius of the cone’s base, i
dalvyx [7]

Answer:

<em>r=3x</em>

Step-by-step explanation:

<u>The Volume of a Cone</u>

The volume of a cone of radius r and height h is:

\displaystyle V=\frac{1}{3}\pi hr^2

We are given the volume of a cone is

V=3\pi x^3

Equating:

\displaystyle \frac{1}{3}\pi hr^2=3\pi x^3

Multiplying by 3:

\pi hr^2=9\pi x^3

Simplifying by pi:

hr^2=9 x^3

Since h=x:

xr^2=9 x^3

Dividing by x:

r^2=9 x^2

Taking square roots:

r=\sqrt{9 x^2}=3x

Thus: r=3x

5 0
3 years ago
Read 2 more answers
The graph of the derivative of a function f crosses the x-axis 3 times. What does this tell you about the graph of f ?
expeople1 [14]

Answer:

D. The function f has 3 horizontal tangent lines

Step-by-step explanation:

Well whenever any function crosses the x-axis, it means that the y-value is equal to zero.

In this case when the derivative passes the x-axis it indicates the tangent line corresponding to that x-value has a slope of zero, which when plotted is a horizontal line.

This means that the graph f has 3 horizontal tangent lines.

7 0
1 year ago
Read 2 more answers
Does the point (5, 24) lie on the line y = 5x - 1?
Igoryamba

Answer:

Step-by-step explanation:

Because 5x - 1 = 55 - 1 = 24 = y

6 0
3 years ago
Read 2 more answers
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