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nikitadnepr [17]
2 years ago
8

Could someone help me on this?

Mathematics
2 answers:
timama [110]2 years ago
6 0
The snswer is B lol get smarter
zysi [14]2 years ago
4 0
Jshshshshshshjajsjsjsjsjsjsjsjsjsjshsjdj
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Round your answer to the nearest tenth if necessary. Use 3.14 for .
harina [27]

Answer:

\boxed{\rm \: Volume_{(Drum)} = 5024 \: in {}^{3} }

Step-by-step explanation:

Given :

  • Diameter of a drum = 20 inches
  • Deep ( height ) of the drum = 16 inches
  • π = 3.14

To Find:

The volume of the drum.

Solution:

We all know that drum is cylindrical.So we'll use the formulae of the volume of cylinder,to find its volume.

\boxed{\rm \: Volume_{(Cylinder)} = \pi{r} {}^{2} h}

Where,

  • r = radius
  • h = height (deep)
  • π = 3.14

The value of radius ain't given,but the diameter is given.We can use the formulae of radius.

\rm \: Radius = D/2

  • D = diameter

Substitute the value of diameter:

\rm \: Radius =  \cfrac{20}{2}  = 10

Hence,the radius is 10.

So we could now use the formulae of the volume of cylinder:

\rm \: Volume_{(Cylinder)} = \pi{r} {}^{2} h

  • π = 3.14
  • r =10 in
  • h = 16 in

<em>[Firstly bring the answer in terms of π then plug π = 3.14 and then simplify.]</em>

\rm \: Volume_{(Drum)} = \pi(10) {}^{2} (16)

\rm \: Volume_{(Drum)} =\pi100(16)

\rm \: Volume_{(Drum)} = 1600\pi

\rm \: Volume_{(Drum)} = 1600 \times 3.14

\boxed{\rm \: Volume_{(Cylinder)} = 5024 \: in {}^{3}}

<u>Hence, we can conclude that:</u>

The volume of this drum is 5024 in^3.

8 0
2 years ago
does anyone know how to solve (and find the domain) a math problem like this: (7^5-x)^6-x = 49 (pls include explanation I have a
Naily [24]

Answer:

his is the format of the straight-line equation,

Where, y = mx + c

Here, m = slope

c = y-intercept.

You usually get coordinates, and after solving, we get our result as an equation of the line.

Hope this helps!

Step-by-step explanation:

7 0
3 years ago
3) A rectangular piece of land measures 780 m by 550 m.
marysya [2.9K]
Area = Length x width
A = L x W

a. A = 780 x 550
=429000 m2

b. If 10000m2 = 1 ha
Then 429000 = 429000/10000
= 42.9 ha
7 0
3 years ago
PLEASE HELP 30 POINTS
Mila [183]
I haven’t really learned this but I think it’s the second one! :)
7 0
3 years ago
Find the sale price to the nearest cent.<br><br> $4.30 makeup; 40% discount; 6% tax
katrin [286]

Answer:

Sale price is $2.58.

Paid with tax is $2.73

Step-by-step explanation:

If the make-up is originally $4.30 and you receive a 40% discount. This means you'll pay 60% of the price since 100-40=60.

To find this price, 60% as 0.6 is multplied with the price. 0.6*4.30 = $2.58

This is the sale price.

When you pay you will pay 6% tax or 0.06 of the price. Find this by multiplying $2.58 by 1.06.

2.58(1.06) = $2.73

7 0
3 years ago
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