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Tanya [424]
3 years ago
11

What is the volume of the sphere? Please

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0

Answer:

   3053.6 mm³

Step-by-step explanation:

The volume of a sphere is given by the formula ...

  V = 4/3πr³ . . . . . where r is the radius, half the diameter

__

For the given sphere, the volume is ...

  V = 4/3π(9 mm)³ = 972π mm³ ≈ 3053.6 mm³

You might be interested in
The total surface area of this cuboid is 112cm squared find the value of x
soldier1979 [14.2K]

Answer:

x=2\sqrt{\frac{14}{3}}\ units  or  x=\frac{2}{3}\sqrt{42}\ units

Step-by-step explanation:

we know that

The surface area of a cube is equal to

SA=6x^{2}

where

x is the length side of a cube

In this problem we have

SA=112\ cm^{2}

substitute in the formula and solve for x

112=6x^{2}

x^{2}=112/6

square root both sides

x=\sqrt{\frac{112}{6}}\ units=2\sqrt{\frac{14}{3}}\ units=\frac{2}{3}\sqrt{42}\ units

5 0
3 years ago
Read 2 more answers
Laura used 12 1/2 square feet of cloth to make 3 dresses. How many square feet of cloth are required to make 12 similar dresses?
kumpel [21]

Answer: 50

Step-by-step explanation: 12 1/2 times 4 is 50

6 0
3 years ago
What is the difference?
myrzilka [38]
The answer is D because denominators on a subtraction problem with fractions stay the same and (x+2)(x+1) is the simplified way of x squared +3x+2
5 0
3 years ago
A girl stands 160 cm tall she stands 360 cm away from a lamp post at night her shadow from the light is 90 cm long how high is t
frozen [14]
1. You should draw a diagram with the information given in the problem. As you can see in the figure attached, there are two triangles, so, you can calculate the height of the lamp post as below:
 
 h1/b1=h2/b2
 
 h1 is the height asked.
 b1=360 cm+ 90 cm
 b1=450 cm
 h2=160 cm
 b2=90 cm
 
 2. When you substitute these values into  h1/b1=h2/b2, you obtain:
 
 h1/450 cm=160 cm/90 cm
 
 3. Now, you must clear the height "h1". Then, you have:
 
 h1=(160 cm)(450 cm)/90 cm
 h1=72000 cm²/90 cm
 h1=800 cm
<span> 
 How high is the lamp post?
</span> 
 The answer is: 800 cm

6 0
4 years ago
The parts of a solid are faces, vertices and __________.
BigorU [14]

Answer:

edges

Step-by-step explanation:

3 0
2 years ago
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