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olasank [31]
4 years ago
15

A cylinder shaped drum is used as a garbage container. The drum has a height of 4 ft and a radius of 1.25 ft.

Mathematics
2 answers:
Marina86 [1]4 years ago
7 0
V=hpir^2
h=4
r=1.25
v=4pi1.25^2
v=4pi1.5625
v=6.25pi
v=19.625
rounded to hundreth
v=19.63 ft³
Nataly [62]4 years ago
6 0

Answer: 19.63 cubic feet

Step-by-step explanation:

The volume of cylinder is given by :-

\text{Volume}=\pi r^2h, where r is the radius and h is the height of the cylinder.

Given: The radius of the cylinder shaped drum= 1.25 ft.

The height of the cylinder shaped drum= 4 ft

The volume of cylinder shaped drum is given by :-

\text{Volume}=\pi (1.25)^2(4)\\\\\Rightarrow\text{Volume}=(3.14)(1.25)^2(4)\\\\\Rightarrow\text{Volume}=19.625\approx19.63\ ft^3

Hence, the drum hold 19.63 cubic feet garbage.

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kupik [55]
They're just asking for the volume of the block which is length*width*height, since this is a rectangular prisim. So...
8*8*16 = 64*16 = 1024
The concrete block is 1024 inches cubed or 1024 cubic inches.
4 0
3 years ago
Read 2 more answers
A rectangular sandbox has a width that's 1⁄4 of its length. The total area of the sandbox is 36 square feet. Find the dimensions
lutik1710 [3]

Answer:

Dimensions of box

Length is 12 feet

Width is 3 feet

Step-by-step explanation:

Let's assume length of sandbox is L

width of box is W

we are given

A rectangular sandbox has a width that's 1⁄4 of its length

so, we can write as

W=\frac{1}{4}L

we know that

area = length*width

so, we get

A=L\times W

now, we can plug back W

A=L\times \frac{1}{4}L

we can set Area=36

36=L\times \frac{1}{4}L

now, we can solve for L

L^2=144

L=12

now, we can find W

W=\frac{1}{4}\times 12

W=3

So, dimensions of box

Length is 12 feet

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6 0
3 years ago
Please help me !!!
Temka [501]
I hope this helps you

8 0
3 years ago
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Solve the system y = -x + 7 and y = -0.5(x - 3)2 + 8
arlik [135]

Answer:

The solution of the system is at point (1,6) and (7,0).

Step-by-step explanation:

Given : System of equation y=-x+7 and y=-0.5(x-3)^2+8

To find : Solve the system of equation?

Solution :

We solve the equation graphically as the intersection points give you the solution of the system.

The equation given is one linear and one parabolic.

(1) y=-x+7 is a linear equation in red line passes through (0,7) and (7,0).

(2) y=-0.5(x-3)^2+8 is a parabolic equation in blue line passes through (-1,0) and (7,0)

The intersection point of the equations are (1,6) and (7,0).

<u>Refer the attached figure below.</u>

Therefore, The solution of the system is at point (1,6) and (7,0).

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4 years ago
A farmer sells 6.9 kilograms of apples and pears at the farmer's market. 3/4 of this weight is apples, and the rest is pears. Ho
Fed [463]
1.725
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