Ask question

Ask question

All categories

Brilliant_brown [7]

4 years ago

11

Please help please help please help and explain step by step

1 answer:

sergejj [24]4 years ago

8 0

Step-by-step explanation:

the formula for volume of a cylinder is :

$v = \pi \: r {}^{2} h$

r=d/2

r = 7/2

h= 10

v= 22/7×7/2×10

v= 110cm³

You might be interested in

There are many cylinders with a

iogann1982 [59]

Answer:

When $Radius = 1$

$Volume = 9\pi$ or $Volume = 28 in^3$

When $Radius = 2$

$Volume = 36\pi$ or $Volume = 113 in^3$ <em> </em>

When $Radius = 3$

$Volume = 81\pi$ or $Volume = 254 in^3$ <em> </em>

Step-by-step explanation:

Given

Solid Shape: Cylinder

Height = 9 inches

Radius = 1 inch; 2 inches; 3 inches

Required

Volume of each cylinder

The Volume of a cylinder is calculated as thus;

$Volume = \pi r^2h$

Where r and h represent the radius and the height of the cylinder;

<em>Given that height, h = 9 inches</em>

<em>Taking π as 3.14</em>

For a cylinder of radius = 1 inch;

The volume is as follows;

$Volume = \pi * 1^2 * 9$

$Volume = \pi * 1 * 9$

$Volume = 9\pi$

$Volume = 9 * 3.14$

$Volume = 28.26$

<em></em> $Volume = 28 in^3$ <em> (Approximated)</em>

For a cylinder of radius = 2 inches;

The volume is as follows;

$Volume = \pi * 2^2 * 9$

$Volume = \pi * 4 * 9$

$Volume = 36\pi$

$Volume = 36 * 3.14$

$Volume = 113.04$

<em></em> $Volume = 113 in^3$ <em> (Approximated)</em>

For a cylinder of radius = 3 inches;

The volume is as follows;

$Volume = \pi * 3^2 * 9$

$Volume = \pi * 9 * 9$

$Volume = 81\pi$

$Volume = 81 * 3.14$

$Volume = 254.34$

<em></em> $Volume = 254 in^3$ <em> (Approximated)</em>

5 0

3 years ago

A cone is placed inside a cylinder. The cone has half the radius of the cylinder, but the height of each figure is the same. The

Feliz [49]

Answer:

$\frac{11}{12}\pi r^{2}h\ units^{3}$

Step-by-step explanation:

we know that

<em>Te volume of the cone is equal to</em>

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

we have

$r=(r/2)\ units$

substitute

$V=\frac{1}{3}\pi (r/2)^{2}h$

$V=\frac{1}{12}\pi r^{2}h$

<em>Te volume of the cylinder is equal to</em>

$V=\pi r^{2}h$

we know that

To find the volume of the space remaining in the cylinder after the cone is placed inside it, subtract the volume of the cone from the volume of cylinder

so

$\pi r^{2}h-\frac{1}{12}\pi r^{2}h=\frac{11}{12}\pi r^{2}h\ units^{3}$

5 0

3 years ago

Phillip wanted to leave a 15% tip. Phillip's bill was $36.00. How much will he leave for a tip?

r-ruslan [8.4K]

Answer:

The tip would be $5.40.

Step-by-step explanation:

Okay so we know the total is $36.00 which makes it easier. 15% of 36 is 5.4. So he would leave $5.40 as a tip.

3 0

3 years ago

Use the given equation to complete the table: s = 16 t squared t (sec) s(ft) 0 1 2 3 Using the points from the table select the

dalvyx [7]

Answer:

a 0, 16, 64,144 graph A edge

Step-by-step explanation:

5 0

3 years ago

The sum of all the positive terms in the geometric sequence 54, -36, 24, -16, ... is

Nat2105 [25]

Answer:

see the pic above for answer

I hope it helps you, mate

3 0

3 years ago