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suter [353]
3 years ago
9

A right circular cylindrical metallic rod is 15 inches tall. The radius of the base is 2 inches. What is the surface area of the

metallic rod in terms of pie?
Mathematics
1 answer:
Artyom0805 [142]3 years ago
4 0

Answer: Surface area = 68π inches²

Step-by-step explanation:

The formula for determining the total surface area of the circular cylindrical metallic rod is expressed as

Total surface area = 2πr² + 2πrh

Where

r represents the radius of the cylindrical rod.

h represents the height of the cylindrical rod.

π is a constant whose value is 3.14

From the information given,

Radius = 2 inches

Height = 15 inches

Therefore,

Surface area = (2 × π × 2²) + 2 × π × 2 × 15) = 8π + 60π

Surface area = 68π inches²

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Answer:

4 and 2 are the required numbers which satisfies the given equations

Step-by-step explanation:

Let the two numbers be x and y

According to the first condition

their is is 6

which is

x + y =6                ........................(i)

Now according to second condition

twice the first number i.e. 2x added to three time the second number i.e. 3y is 10

in form of equation it could be written as

2x + 3y = 10           ........................(ii)

Now from first equation we have

x + y =6

subtracting y from both sides

x = 6 - y                    .....................(iii)

Now putting this value of x in equation (ii)

equation (ii) is

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Putting the value gives

2(6-y)+3y = 10

opening the brackets

12 - 2y + 3y = 10

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subtracting 12 from both sides

12 - y -12 = 10 -12

it becomes

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multiplying both sides by (-1)

it becomes

(-1)(-y) = (-2) * (-1)

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putting the value

x = 6 - 2

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So the two numbers are x = 4 and y = 2

3 0
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What is the property of (2x)y=2(xy) ?
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2(xy) = (2x)y is an associative property of multiplication. This answer has been confirmed as correct and helpful.

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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