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Masteriza [31]
3 years ago
13

Does doubling the height of the cylinder has the same affect on the volume of a cylinder as doubling the radius explain

Mathematics
1 answer:
musickatia [10]3 years ago
3 0
Volume of cylinder = π.R².h , where R = radius and h = height

Let's replace h by 2h:
V₁= πR².(2h) → V₁ = 2π.R².h

Now let's double R, the radius (and keep h as h)
V₂ = π.(2R)².h → V₂ = 4.π.R².h

Compare V₁ to V₂→ (V₁ = 2π.R².h  and  V₂ = 4.π.R².h).
It's obvious that V₂ = 2.V₁

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The formula to convert Fahrenheit to Celsius is C - 5 (F - 32). Convert 30°C to
bulgar [2K]

Answer:

D. *6F

Step-by-step explanation:

C=(F-32)*5/9

30=(F-32)*5/9

F = (30*9)/5+32

F = 86

6 0
3 years ago
A cone shaped paper water cup has a height of 12 cm and a radius of 6 cm. If the cup is filled with water to half its height, wh
monitta

Answer:

The portion of the volume of the cup that is filled with water is \frac{1}{8}

Step-by-step explanation:

step 1

Find the volume of the paper water cup

The volume of the cone is equal to

V=\frac{1}{3}\pi r^{2}h

we have

r=6\ cm

h=12\ cm

substitute

V=\frac{1}{3}\pi (6)^{2}(12)

V=144\pi\ cm^{3}

step 2

If the cup is filled with water to half its height, find out what portion of the volume of the cup is filled with water

Remember that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

In this problem the similar cone has half the height of the complete cone

so

The scale factor is equal to 1/2

therefore

The volume of the cup that is filled with water is equal to the volume of the complete cup by the scale factor elevated to the cube

V=(1/2)^{3}(144\pi)=(1/8)144\pi\ cm^{3}

therefore

The portion of the volume of the cup that is filled with water is

\frac{1}{8}

8 0
3 years ago
Read 2 more answers
Solve 10x-3=6x+85 give a reason to justify each statement
siniylev [52]
<span>10x-3=6x+85
4x = 88
  x = 22</span>
6 0
3 years ago
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What is the solution to the proportion 3y-8/12=y/5? can someone help me do this?
RideAnS [48]
   
\displaystyle\\&#10; \frac{3y-8}{12} = \frac{y}{5}  \\  \\ &#10;5(3y-8)=12y\\\\&#10;15y-40=12y\\\\&#10;3y = 40\\\\&#10;\boxed{y =  \frac{40}{3}}



3 0
3 years ago
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GH bisects FGI. Find the measure of HGI<br><br> •15°<br> •21°<br> •10°<br> •8°
tester [92]

Answer:

m<HGI=21°

Step-by-step explanation:

we know that

If GH bisects m<FGI then

m<FGH=m<HGI

substitute the values

(2x+1)°=(3x-9)°

solve for x

3x-2x=1+9

x=10°

The measure of angle HGI is equal to

(3x-9)° ------> substitute the value of x

3*10-9=21°

m<HGI=21°

3 0
3 years ago
Read 2 more answers
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