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nadya68 [22]
3 years ago
5

How to tell whether lines are parallel perpendicular or neither?

Mathematics
1 answer:
julsineya [31]3 years ago
6 0
The way they are turned
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Determine the mass of a solid steel ball that has a diameter of 10 cm. The density of pure steel is 8.09 g/cm3
Basile [38]

Answer:

<em>The mass of the steel ball is 4,235.9 gr</em>

Step-by-step explanation:

<u>Density</u>

The density ρ of a substance is a measure of its mass per unit volume:

\displaystyle \rho=\frac{m}{V}

If the density and the volume are given, the mass can be calculated by solving the above formula for m:

m=\rho.V

We know the density of pure steel ρ=8.09 gr/cm3 and the diameter of a solid steel ball d=10 cm.

We need to calculate the volume of the sphere:

The volume of a sphere of radius r is given by:

\displaystyle V=\frac{4}{3}\cdot \pi\cdot r^3

The radius is half the diameter: r= 10/2 = 5 cm. Thus:

\displaystyle V=\frac{4}{3}\cdot \pi\cdot 5^3

Calculating:

V=523.6\ cm^3

The mass is:

m=8.09 gr/cm^3 \cdot 523.6\ cm^3

m=4,235.9 gr

The mass of the steel ball is 4,235.9 gr

4 0
3 years ago
12x +18<br> :)<br> 6<br> what’s the work
slava [35]

Answer:

6(2x+3)

Step-by-step explanation:

12x +18

Factor out 6 from each term

6*2x+ 6*3

6(2x+3)

6 0
3 years ago
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Constituents cuckoo chip<br><br> Watchu know ab Rollin down in the deep
liq [111]

Answer:

LOL

Step-by-step explanation:

3 0
3 years ago
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Can someone help with this ??
White raven [17]

Answer:

D

Step-by-step explanation:

Range is the least number (50) subtracted from the greatest number (90)

90-50 = 40 (range)

The most dots is at 70 and the chart is symmetrical.

3 0
3 years ago
Let d = 3.
Phoenix [80]
The correct answer would be A.36.

Hope this helps;)
6 0
3 years ago
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