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AVprozaik [17]
3 years ago
10

You double the radius of a sphere. How does this affect the volume?

Mathematics
1 answer:
Afina-wow [57]3 years ago
5 0
The volume of a sphere is defined as:
V=(4*pi*r^3)/3
then, if we double the radius of the sphere (r=2r):
V=(4*pi*(2r)^3)/3
V=(4*pi*(2^3*r^3))/3
V=(4*pi*r^3)/3*8

Then, the answer is that if you double the radius of the sphere, its volume is increased 8 times.
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Create a list of steps, in order, that will solve the following equation.
Vlada [557]

Answer:

a = -3

Step-by-step explanation:

Solve for a:

2 (a + 5) - 1 = 3

Hint: | Distribute 2 over a + 5.

2 (a + 5) = 2 a + 10:

(2 a + 10) - 1 = 3

Hint: | Group like terms in 2 a - 1 + 10.

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Hint: | Evaluate 10 - 1.

10 - 1 = 9:

2 a + 9 = 3

Hint: | Isolate terms with a to the left hand side.

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Hint: | Look for the difference of two identical terms.

9 - 9 = 0:

2 a = 3 - 9

Hint: | Evaluate 3 - 9.

3 - 9 = -6:

2 a = -6

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of 2 a = -6 by 2:

(2 a)/2 = (-6)/2

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2/2 = 1:

a = (-6)/2

Hint: | Reduce (-6)/2 to lowest terms. Start by finding the GCD of -6 and 2.

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Answer:  a = -3

8 0
2 years ago
Can someone tell me how to resolve this? Please....
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3.2=1/2q+5.65
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divide both sides by 1/2
q=-4.9
6 0
3 years ago
13. Dallon bought a canoe that cost $33.75. The sales tax was 5.25%. What was his total cost including tax?13. Dallon bought a c
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x. 5.75.
_____ _____
33.75. 100

100x = 177.18
÷100. ÷100

x = 1.77

33.75
+1. 75
=
35.50
7 0
3 years ago
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