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Nutka1998 [239]
3 years ago
7

Help with answer and explanation please

Mathematics
1 answer:
timurjin [86]3 years ago
8 0
Fix diffjcjcndfbcjdnd f fbdjdd
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The cylinders are similar the volume of the larger cylinder is 1600 cubic centimeters what is the volume of the smaller cylinder
cestrela7 [59]

We are given Volume of the larger cylinder is = 1600 cubic centimeters.

Height of the larger cylinder = 16 cm.

We know formula of volume of a cylinder V=\pi r^2h, where r is the radius of cylinder,  h is the height of the cylinder.

Plugging value of V and h of larger cylinder, we get

1600=\pi r^2(16).

Dividing both sides by 16, we get

\frac{1600}{16}=\frac{\pi r^2 (16)}{16}

r^2=100

Taking square root on both sides, we get

r=10.

Therefore, radius of the larger cylinder is 10 cm.

We are given cylinders are similar .

<u>Note: The radii and heights of similiar cylinders are in same ratio.</u>

Therefore, we can setup a proportion:

Let us take radius of small cylinder is x.

\frac{x}{10}=\frac{4}{16}

\frac{x}{10}=\frac{1}{4}

Multiplying both sides by 10, we get

10 \times \frac{x}{10}=10 \times\frac{1}{4}

x=2.50.

Therefore, radius of the small cylinder = 2.5 cm.

Now, plugging radius =2.5 and height  = 4 in the formula of volume the cylinder, we get

V=\pi (2.5)^2(4)=\pi (6.25)(4) =25 \pi \ cm^3.

Therefore, correct option is 25 pi cm^3.

8 0
3 years ago
What is m(m+7)=0?<br><br> Please get right!
Neko [114]

Answer:

m^2+7m=0

Step-by-step explanation:

m(m+7)=0

m^2+7m=0

8 0
3 years ago
Read 2 more answers
An airplane’s altitude changed –378 feet over 7 minutes. What was the mean change of
Mkey [24]
sorry i need to answer questions to ask them
5 0
3 years ago
Read 2 more answers
1/2x+3=2/3x+1<br>what's the answer​
yan [13]
1/3x+2 or x=1.5 depends on if u have to find x itself
3 0
4 years ago
10 points, thank you in advance :)
Sophie [7]

Answer:

-3 + 10i

sqrt-100 = sqrt100i

sqrt100 = 10

So,

-3 + 10i

8 0
3 years ago
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