All categories

3 years ago

Please help :,) thank youu

Mathematics

1 answer:

choli [55]3 years ago

4 0

Answer:

$\frac{V}{pi(r^2)}$ = h

Step-by-step explanation:

Just divide both sides by pi r^2 to cancel it form the right side and you will be left with:

$\frac{V}{pi(r^2)}$ = h

You might be interested in

A ratio of dogs to cats a pet store is 1:3. There are 15 cats. how many dogs are at the pet store

DIA [1.3K]

From the ratio given we know that there is 3 times more cats than dogs.

If there are 15 cats, then there are 15/3 dogs or 5 dogs.

answer: 5 dogs

8 0

3 years ago

A kitchen sink has a volume of 1800 cubic inches.What is the volume of a similar sink that is larger by a scale factor of 2

bonufazy [111]

Answer:

14400 cubic inches.

Step-by-step explanation:

Let l, b and h are length, breadth and height of a cuboid respectively, then

$V=l\times b\times h$

If another cuboid is larger by a scale factor of k, then kl, kb and kh are length, breadth and height of new cuboid respectively.

$V_1=kl\times kb\times kh$

$V_1=k^3(l\times b\times h)$

$V_1=k^3V$ ...(i)

It is given that a kitchen sink has a volume of 1800 cubic inches and a similar sink is larger by a scale factor of 2.

Substitute k=2 and V=1800 in equation (i).

$V_1=2^3(1800)$

$V_1=14400$

Therefore, the volume of required sink is 14400 cubic inches.

7 0

3 years ago

In a pass of 30 students 13 are boys

Firdavs [7]

Answer:

Ratio of boys to all students:

13:30

Ratio of girls to all students:

17:30

Ratio of boys to girls:

13:17

Step-by-step explanation:

I think you're asking for the ratio... so I hope this helps! :D

7 0

2 years ago

A bullet travels at 850m/s. How long will it take a bullet to go 1km

gregori [183]

<span>(1 km x 1,000m) </span>÷ 850 m/s = 1.18 s

6 0

3 years ago

Jay has 13 posters to hang. He hangs 5 in the morning. Then he hangs 4 more in the afternoon. How many posters does J have left

Harlamova29_29 [7]

Answer:

He has 4 more to hang

Step-by-step explanation:

13 total; you must add the 5 he already hung in the morning plus, the 4 he hung in the afternoon; leaving you with 4 because 5 plus 4 is 9. 13 minus 9 is 4.

6 0

3 years ago

Read 2 more answers