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kirill [66]
1 year ago
8

A metal pipe is 1.4 m long. Its internal diameter is 25 mm and thickness 1 mm. If 1 mm³ of the metal weighs 0.02 gm, find the we

ight of the pipe.​
Mathematics
1 answer:
murzikaleks [220]1 year ago
3 0

The weight of the pipe is 2287.4gm.

<h3>What is Unit of Measurement?</h3>

It is definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.

It is given,

A metal pipe is 1.4 m long

Length of metal pipe is 1.4m=1400mm

Its internal diameter is 25 mm

Radius =12.5mm

Thickness=1mm

outer radius=12.5+1=13.5mm

volume of pipe=

V=π(R²−r² )h

V=3.142(13.5²-12.5²)1400

V=3.142(182.25-156.25)1400

V=3.142(26)1400

V=114368.8

1 mm³ of the metal weighs 0.02 gm

So  1.4 m long metal weights 114368.8×0.02=2287.4gm

Hence,  the weight of the pipe is 2287.4gm.

To learn more on Unit of Measurement click:

brainly.com/question/15402847

#SPJ1

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Debora [2.8K]

Answer:

The formula is a^2 + b^2 = c^2

Step-by-step explanation:

A and B are legs and C is the hypothunisis.

The theorem is used for triangles.

4^2  + 5^2 = c^2

16 + 25 = c^2

41 = c^2

sqr(41) = sqr(c)^2

c = 6.403124237

4 0
2 years ago
6x-3-11-8x=2 please show work
Ludmilka [50]

Answer: is x = -8

this is how i got it ______

6 x - 3 - 11 - 8 x = 2

(simplify both sides and combine like terms)

(6x + -8x ) + ( -3 + -11) = 2

- 2x  +  -14 = 2

-2x  -  14 = 2

( then you add 14 to both sides)

- 2x - 14 = 2

     +14       +14

-2x = 16

( then you divide both sides by -2)

-2x / -2   =   16/ -2

x = -8

ta da!! happy to help!

it made it here. this is for the second one.

( first, we subtract 8n from both sides)

13n + 26 = 8n - 29

-8n           -8n

5n + 26  =  -29

( then we subtract 26 from both sides)

5n + 26 = -29

     - 26    -26

5n = - 55

(after that we divide both sides by 5, we do this to make n alone )

5n/ 5 = -55/ 5

n = -11

7 0
2 years ago
What’s the answer pleazzzzz helplllllll 9m^2-4m-6 by 3m
dlinn [17]

Answer

D. 3m - 4/3 -2/m


<u>Explanation</u>

(9m²-4m-6) ÷ 3m  = 9m²/3m - 4m/3m - 6/3m

Carry out the division, each term is divided by 3m.

9m²/3m = 3m

- 4m/3m = -4/3

- 6/3m = - 2/m

Finally you will get,

<em>3m - 4/3 -2/m</em>

5 0
3 years ago
1 point
valentina_108 [34]

Answer:

34

Step-by-step explanation:

7 0
3 years ago
We created this inequality to represent how Amy can meet her revenue goals:
brilliants [131]

Answer:

x = 2

Price = $29

Step-by-step explanation:

If x is the number of $2 dollars increases, then the minimum number of increases required to meet her goal is:

-100x^2 + 15,750x + 212,500 \geq 243,600\\-100x^2 + 15,750x -31,100\geq 0\\x^2 -157.5x + 311\geq 0\\x=\frac{157.5\pm\sqrt{157.5^2-(4*1*311)} }{2}\\ x_1= 2\\x_2=155.5

The only realistic value is x = 2 $2 increases

If the original price was $25, then the new rice required to reach Amy's goal is:

P=25+2*2\\P=\$29

The minimum ticket price is $29.

7 0
3 years ago
Read 2 more answers
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