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ser-zykov [4K]
3 years ago
13

How do I find the volume of a sphere when I only have the circumference?

Mathematics
1 answer:
tatuchka [14]3 years ago
8 0

Step-by-step explanation:

Circumference of a circle is C = 2π r.

Volume of a sphere is V = 4/3 π r³.

Use the circumference to find the radius.  Then use the radius to find the volume.

Or, you can find volume as a function of radius:

r = C / (2π)

V = 4/3 π (C / (2π))³

V = 4/3 π (C³ / (8π³))

V = 1/6 C³ / π²

V = C³ / (6π²)

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Please help it’s due at12!!!
Goshia [24]

Answer:

$2.25 per ft² (I think)

Step-by-step explanation:

Subtract 4.9 from 6.4 to get 1.5

Multiply 6.4 by 1.5 and multiply 4.9 by 1.5

Then you get 9.6 and 7.35

Subtract 7.35 from 9.6 and get 2.25

7 0
4 years ago
Use the law of cosines to find each missing side. Round to the nearest tenth
Charra [1.4K]

The law of cosine helps us to know the third side of a triangle when two sides of the triangle are already known. The value of x is 117.8°. thus, the correct option is A.

<h3>What is the Law of Cosine?</h3>

The law of cosine helps us to know the third side of a triangle when two sides of the triangle are already known the angle opposite to the third side is given. It is given by the formula,

Cos(\theta) = \dfrac{a^2+b^2-c^2}{2ab}

where

c is the third side of the triangle

a and b are the other two sides of the triangle,

and θ is the angle opposite to the third side, therefore, opposite to side c.

As per the law of cosine, the measure of angle x can be written as,

Cos(x) = \dfrac{12^2+5^2-15^2}{2(5)(12)}\\\\Cos(x) = \dfrac{-56}{120}\\\\x = 117.8^o

Hence, the value of x is 117.8°. thus, the correct option is A.

Learn more about the Law of Cosine:

brainly.com/question/17289163

#SPJ1

5 0
2 years ago
There are 17 girls and 23 boys in P.E class.Of these students,10 girls and 14 boys will try out for basketball.What percentage o
insens350 [35]

Answer:

60%%

Step-by-step explanation:

17+23=40, 40 in total.

10+14=24, 24 students trying out.

24 of 40 as a percent=60

4 0
3 years ago
Read 2 more answers
It cost $5 to enter an amusement park and $3 per ride you take.
svlad2 [7]

Answer:

y here's how you count by 5 10 15 20 25 30 35

3 0
2 years ago
Isabel has ridden 16 miles of a bike course. The course is 80 miles long. What percentage of the course has Isabel ridden so far
OlgaM077 [116]

Answer:

20%

Step-by-step explanation:

Divide 16 by 80 and you get 0.2 as an answer and to get a percent you move the decimal 2 places to the right to fet 20%

7 0
3 years ago
Read 2 more answers
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