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Ray Of Light [21]
2 years ago
14

A storage drum in the shape of a cylinder is 3 feet tall and has a diameter of 4 feet. What is the total surface area of the sto

rage drum? Use 3.14 for Pi and round the answer to the nearest tenth. Recall the formula S A = 2 pi r squared + 2 pi r h. 20.0 37.7 50.2 62.8
Mathematics
2 answers:
nexus9112 [7]2 years ago
8 0

Step-by-step explanation:

<u>Step 1:  Find the surface area</u>

<u />Radius = Diameter /2<u />

<u />Radius = 4/2<u />

<u />Radius = 2<u />

<u />

<u />Surface \ Area = 2\pi * r * h +2 \pi * r^2

Surface \ Area = 2\pi * (2) * (3) + 2\pi * (2)^2

Surface \ Area = 2\pi * 6 + 2\pi * 4

Surface \ Area = 12\pi + 8 \pi

Surface \ Area = 20\pi

Surface\  Area = 62.8...

Answer:  Option D, 62.8

ycow [4]2 years ago
7 0

Answer:

62.8 ft^2

Step-by-step explanation:

radius = 2 ft (since diameter = 4 ft, and radius = 1/2 * diameter)

height = 3 ft (given)

surface area = (2 * 3.14 * 2 * 3) + (2 * 3.14 * 2 * 2)

= (37.68) + (25.12)

= 62.80 ft^2

Hope this helps!

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2 years ago
Please someone help <br> I need this
Sunny_sXe [5.5K]

Answer:

the triangle

Step-by-step explanation:

The perimeter is the sum of the all sides of the shape.

Triangle:

3√147+2√108+2√48+3√75+ 6√12

147=49•3, 108=36•3, 48=16•3, 75=25•3, 12=4•3 that means

√147=7√3, √108=6√3, √48=4√3, √75=5√3, √12=2√3

perimeter=3•7√3+2•6√3+2•4 √3+3•5√3+6•2√3=68√3

Square:

4•1/3•√63=4/3•√9•√7=4√7

Rectangle:

2•1/4√100+2(2√48+4√75)=

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8 0
2 years ago
Multiply and simplify. 2x4yx⋅6xy2z3
OLEGan [10]

Answer:

The given expression 2x^4yx \times 6xy^2z^3   on multiplying  is 12x^6y^3z^3

Step-by-step explanation:

Consider the given two expressions 2x^4yx and 6xy^2z^3

We have multiply both expressions,

2x^4yx \times 6xy^2z^3

To multiply two terms first multiply constant numbers that is 6 × 2 = 12

For x , y and z apply property of exponent,

x^a\cdot x^b=x^{a+b}

Then power of x together will be,

x^4\cdot x\cdot x=x^{4+1+1}=x^6

Similarly for y powers,

y \cdot y^2=y^{1+2}=y^3

Since first term do not have any expression for z so it will remain same.

Thus, the given expression  on multiplying become,

2x^4yx \times 6xy^2z^3 is 12x^6y^3z^3




7 0
3 years ago
Read 2 more answers
A store is having a 20% off sale. If the
Aleks [24]

Answer:

$64.32

Step-by-step explanation:

What you do is:

$53.60×20% → $53.60×0.2

$53.60×0.2=$10.72

$10.72 is the amount of money taken off because of the sale.

Then what you do is:

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53.60

<u>+10.72</u>

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The original price was $64.32.

Hope this helps! Please mark my answer brainliest!

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3 years ago
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Step-by-step explanation:

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we have here 2 triangles : the larger, outer shaded one, and the smaller, inner white one.

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the shaded area is

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4 0
2 years ago
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