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Svetradugi [14.3K]
3 years ago
5

Help This step works because of the ______

Mathematics
2 answers:
lisov135 [29]3 years ago
5 0
I think it's 'b'. Sorry if I'm incorrect. ^^;
solong [7]3 years ago
5 0
This works because of the addition property of equality
a=16--->a+3=16+3
reverse engineering
a+3=16+3--->a=16
now given that 5x-4y=-30
and given also the equation 3x+4y=38
by the addition property
3x+4y+(-30)=38+(-30)
since -30=5x-4y by substituting
3x+4y+(5x-4y)=38-30
which yields
8x=8
the addition property of equality which is B.
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3 years ago
HELP URGENT. The following sphere has a diameter of 18 cm. What is the volume of the sphere? Use 3.14 for and round your answer
Trava [24]

The volume of the sphere with the given value of diameter is to the nearest tenth is 3052.1cm³.

Option C is the correct answer.

<h3>What is the volume of the sphere?</h3>

The volume of  the sphere is the amount of space occupied within the sphere.

Volume of sphere is expressed as;

V = (4/3)πr³

Where r is the radius and π is pi ( π = 3.14 )

Given that;

  • Diameter of the sphere d = 18cm
  • Radius r = d/2 = 18cm/2 = 9cm
  • Constant pi π = 3.14
  • Volume V = ?

V = (4/3)πr³

V = (4/3) × 3.14 × 9cm)³

V = (4/3) × 3.14 × 729cm³

V = 3052.1cm³

Therefore, the volume of the sphere with the given value of diameter is to the nearest tenth is 3052.1cm³.

Option C is the correct answer.

Learn more about volume of hemisphere here: brainly.com/question/3362286

#SPJ1

6 0
2 years ago
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