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3 years ago

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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15miles/1 hours = ?ft/1 hours

Nataly [62]

Answer:

79200ft/1 hour

Step-by-step explanation:

Formula

multiply the length value by 5280

8 0

3 years ago

Solve for x please, will give braknliest

kow [346]

Answer: The answer should be 72

Explanation: Triangles add up to 180. The two bottom points are the same. So you would take 180 and subtract it by 36. That would give you 144. You would then take 144 and divide it by 2, because the two angles are the same and your only trying to find one.

7 0

2 years ago

Item 1 A bag contains 7 blue cards, 4 green cards, 6 red cards, and 8 yellow cards. You randomly choose a card. a. How many poss

egoroff_w [7]

Answer:

4 possible outcomes

Step-by-step explanation:

we know that

The probability of an event is the ratio of the size of the event space to the size of the sample space.

The size of the sample space is the total number of possible outcomes

The event space is the number of outcomes in the event you are interested in.

Let

x------> size of the event space

y-----> size of the sample space

$P=\frac{x}{y}$

In this problem

The probability of choose a blue card is

$x=7$

$y=7+4+6+8=25$

substitute

$P=\frac{7}{25}$

The probability of choose a green card is

$x=4$

$y=7+4+6+8=25$

substitute

$P=\frac{4}{25}$

The probability of choose a red card is

$x=6$

$y=7+4+6+8=25$

substitute

$P=\frac{6}{25}$

The probability of choose a yellow card is

$x=8$

$y=7+4+6+8=25$

substitute

$P=\frac{8}{25}$

The sum of the probabilities of the 4 possible outcomes is equal to

$\frac{7}{25}+\frac{4}{25}+\frac{6}{25}+\frac{8}{25}=\frac{25}{25}$ ----> represent the 100%

4 0

3 years ago

Mrs. CADY CONSTRUCTS A CUBE WITH 512 MAGNETIC BLOCKS. STUDENTS IN HER TWO CLASSES WILL EACH MAKE AN IDENTICAL CUBE. THERE ARE 28

Lilit [14]

YOU DON"T HAVE TO YELL

512 PER STUDENT

BASICALLY,
CUBES NEEDED=CUBES PER STUDENT TIMES NUMBER OF STUDENTS

NUMBER OF STUDENTS=28+25=53

CUBES PER STUDENT=512

CUBES NEEDED=512 TIMES 53 EQUALS 27136 CUBES

SHE NEEDS 27136 CUBES FOR ALL HER STUDENTS

8 0

3 years ago

Question: "Solve for volume and round to the nearest tenth, if necessary use 3.14."

ira [324]

When I solved it I got 26648.8

3 0

3 years ago