Mathematics High School

About how much cardboard is needed to make the inner tube for a roll of paper if the
tube has a diameter of 4.5 cm and is 24 cm long?

Answers

Answer 1

Answer:

[tex]A=339.42\ cm^2[/tex]

Step-by-step explanation:

The diameter of the roll of paper, d = 4.5 cm

Radius, r = 2.25 cm

Height of the roll of papaer, h = 24 cm

We need to find how much is needed to make the inner tube for a roll of paper. The surface area of a cylinder for inner tube is given by :

[tex]A=2\pi r h\\\\=2\times \dfrac{22}{7}\times 2.25\times 24\\\\=339.42\ cm^2[/tex]

So, the required area is [tex]339.42\ cm^2[/tex].

Related Questions

What must be the annual payment you receive in order to earn 6.3% rate of return on a perpetuity that has a price of $245.1? (Answer in $s to the nearest cent, i.E. Xx.Xx, with no $-sign or commas needed.)

Answers

Answer:

the  annual payment received is 15.44

Step-by-step explanation:

The computation of the annual payment received is shown below:

As we know that

Perpetuity = Payment ÷ rate of return

$245.1 = Payment ÷ 6.3%

So, the payment is

= $245.1 × 6.3%

= 15.44

Hence, the  annual payment received is 15.44

We simply apply the above formula so that the annual amount could come

Sheet metal costs $1.88 per square foot. About how much
will Nick spend to cover the outside of the shed, not
including the bottom?

Answers

Answer:

Final Cost: $364.72

Step-by-step explanation:

We can see a picture of the shed attached below. To find the total cost we need to first find the surface area of the entire shed. The sides are rectangles, so to find the surface area we need to multiply the length by the width. Since there are two rectangular sides we multiply the result by 2.

A = L * W

A = 10 * 4.7

A = 47 sq ft. * 2sides

Total = 94 sq ft.

Now we calculate the bottom which is also a rectangle

A = L * W

A = 10 * 8

A = 80sq ft.

Now we need to calculate the surface area of the triangular sides and multiply the results by 2 since there are two triangular sides. The formula for the area of a triangle is half times base times height...

A = 0.5 * B * H

A = 0.5 * 8 * 2.5

A = 10 sq ft  * 2 sides

Total = 20 sq ft

Finally, we need to add the entire surface area and multiply by the cost per square foot to find the total cost.

94 + 20 + 80 = 194 sq ft

194* 1.88 = $364.72

Are these triangles congruent? If so, state the rule which you used to determine congruence
A. SSA
B. AAS
C. ASA
D. Not necessarily congruent

Answers

Answer:

not necessarily confident cuz simply it doesn't look same size it should be similar

What is the IQR of:
44, 38, 51, 59, 53, 47, 52
i forget how to do iqr lol

Answers

Answer: 9

Step-by-step explanation:

GIVING BRAINLIEST AND EXTRA POINTS!!!! PLS HELP :(

Which images below are scalene triangles?

A) Triangles A and D
B) Triangles B and D
C) Triangles A and C
D) Triangles C and D

Answers

A is the right and Zoe

Answer:A is the right

How many whole numbers are there with not more than 4 digits IF YOU PUT A LINK OR UNHELPFUL ANSWER I WILL REPORT I WILL GIVE BRAINLIEST

Answers

Answer:

There are 9,999 positive whole numbers with 4 or less digits or less and one whole number which is neither positive nor negative.

This gives us 9,999+9,999+1 or 19,999 , whole numbers composed of 4 digits or less.

Multiply plz

7(8x + 3)

I will mark brianlest if you can answer all of the questions in the pic.

Answers

7(8x+3) = 56x+21
8(8x+4) = 64x+32
4(8x+4) = 32x+ 16
first one is 7(8x+3)=56x+21

The small pizza is 8 inch what the circumference plz help

Answers

25.12 I think.


Dmdkskskxkakskzmmxkcodirigiititjwmamxksoslalskfkcmdlwoe

can someone please help me asap ill mark brainlist/ extra points!!!

Answers

i believe the answer is 25

Answer:

25 yds

Step-by-step explanation:

2*radius=diameter

radius=diameter/2

r=50/2

r=25yds

How much money was spent?

16

24

28

22

Answers

Umm you’re going to be more specific with your question
What are you asking here?

find the value of x
9−5x=−8

Answers

Answer:

x= [tex]3\frac{2}{5}[/tex] or x=3.4

A right rectangular prism has base dimensions of 2 1 /10 ft wide and 4 1/ 5 ft long. If the height of the prism is 3 1 /2 ft, what is the volume of the prism?

Answers

Answer:

2 1/10 x 4 1/5 x 3 1/2 = 30 87/100 feet

(Remember multiply one by one first multiply 2 1/10 x 4 1/5 = 8 41/50

then multiply 8 41/50 with 3 1/2 to get = 30 87/100 is your answer)

Step-by-step explanation:

Just multiply the given lengths. A 3 dimensional shape has to be given 3 sides in order to know the area/volume: Length x Width x Height

I need help with this!

Answers

96 cuz 2x3=6 and 6x16=96

the area of and rectangle

Answers

Answer:

the are of a rectangle is length x width

which table shows the relationship y=k/x where k is a real number

Answers

Answer:

the answer is 1/5 because y/x gives you k

Step-by-step explanation:

Please help me with the answer to these. The pictures go together for the problem

Answers

Answer:

6.6

Step-by-step explanation:

How many 3 digit numerical passwords are there if a digit can be repeated?

Any math experts can help please and thank you

Answers

Answer:

QUESTION:

How many 3 digit numerical passwords are there if a digit can be repeated?

ANSWER:

The first digit of the password can be any of the ten digits - 10 possibilities.

A digit cannot be repeated, so the second digit can be any digit except the one you chose for the first digit - 9 possibilities.

The third digit can be any digit except the digits you chose for the first and second digit - 8 possibilities.

Using the rule of product:

10 X 9 X 8 = 720

There are 720 passwords.

Step-by-step explanation:

Hope that this helps you out! :)          

If you have any questions please put them in the comment section below this answer.          

Have a great rest of your day/night!          

Please thank me on my profile if this answer has helped you.

Answer:

1000?

Step-by-step explanation:

find the missing term in the equation below (?+5)+(3x-2)=8x+3

Answers

Answer: 5x

Step-by-step explanation:

5x + 3x = 8x

Answer: Question

find the missing term in the equation below (?+5)+(3x-2)=8x+3

(5x+5)+(3x-2)=8x+3

5x+5+3x-2

5x+3x+5-2

8x+3

therefore, answer proved

PLZ ACCEPT MY EFFORT

5 STAR +THANKS  :(

me and my crips shoot up yo gang homie

Answers

Answer:

u sure abt that?

cuz im the Mandalorian

crips aint got nothing on me and my beskar

THIS IS THE WAY

Two puppies eat 2 cans of dog food in 2 days. How many cans of dog food can 8 puppies eat in 8 days? Note: All puppies eat at the same constant rate.

Answers

Answer:

64 cans

Step-by-step explanation:

If two puppies eat 2 cans in two days then you can imagine one puppy eats one and the other puppy eats the other. so if 8 puppies eat in 8 days you would want to do 8 * 8 = 64 cans

Convert the number to standard notation.
3.8 x 10^-6

Answers

Answer:

3.8E-6

Step-by-step explanation:

Find the value of x.

Answers

Answer:

=147x2+406x−253

Step-by-step explanation:

8. A truck is carrying peach juice, pear juice,
and grape juice bottles in a ratio of 4:3:5. If
there are 76 peach juice bottles, then how many
pear juice bottles are there?

Answers

Answer:

57 pear juices

Step-by-step explanation:

because we know we have 76 peach juices and the ratio is 4, so we get 19.  This means that 19=x.  And then we multiply 19 by 3 and we get 57.  

What is the y-intercept of the line graphed on the grid?
(9,2)
(-5,-5)
Help pleaseeee besties

Answers

the y intercept is (0,- 5/2) bestie

(-5,-5)(9,2)

2-(-5)=7
———
9-(-5)=14
m=1/2(simplified)

y=mx+b (m=1/2)(9,2)

2=1/2(9)+b
2=4.5+b
*subtract 4.5 from both sides*

b=-2.5 or (0,-2.5)

What is the vertical line that divides the parabola into two equal part?

Answers

Answer:

It would be the y-axis.

Step-by-step explanation:

What additional information could you use to show that ΔSTU ≅ ΔVTU using SAS? Check all that apply.

Answers

Options

A. UV = 14 ft and m∠TUV = 45°

B. TU = 26 ft

C. m∠STU = 37° and m∠VTU = 37°

D. ST = 20 ft, UV = 14 ft, and m∠UST = 98°

E. m∠UST = 98° and m ∠TUV = 45°

Answer:

A. UV = 14 ft and m∠TUV = 45°

D. ST = 20 ft, UV = 14 ft, and m∠UST = 98°

Step-by-step explanation:

Given

See attachment for triangle

Required

What proves that: ΔSTU ≅ ΔVTU using SAS

To prove their similarity, we must check the corresponding sides and angles of both triangles

First:

[tex]\angle UST[/tex] must equal [tex]\angle UVT[/tex]

So:

[tex]\angle UST = \angle UVT = 98[/tex]

Next:

UV must equal US.

So:

[tex]UV = US = 14[/tex]

Also:

ST must equal VT

So:

[tex]ST = VT = 20[/tex]

Lastly

[tex]\angle TUV[/tex] must equal [tex]\angle TUS[/tex]

So:

[tex]\angle TUV = \angle TUS = 45[/tex]

Hence: Options A and D are correct

Its A and D

i just did it on edg

Dallas put g gallons of gas in his car. If the car holds 21 gallons to begin, which expression tells how much gas was in the car before Dallas bought gas?
​

Answers

Answer:

21

Step-by-step explanation:

tee hee

Answer:

if you are talking about distance on cars i have provided you with a chart of      different cars prices and the distance they went/ Vehicle Miles per gallon Gas price, per mile

Subaru Outback 21 $0.14

Chrysler Sebring 21 $0.14

Porsche Boxster 22 $0.13

 PT Cruiser   22  |$0.13

\

If the buses run on schedule, when is the next time a red line and a blue line bus will leave together? Show your work.

Answers

Answer:

So the next time they will leave together is 4:24 pm

Step-by-step explanation:

Since both the buses left at 4 pm and red line bus leaves every 6minutes and blue line bus leaves every 8 minutes they next time they leave together can be found by taking the L.C. M of 6 and 8.

The L.C. M is found by multiplying all the factors and chosing one which common in both numbers.

Factors of 6 = 2*3

Factors of 8= 2*2*2

In these numbers 2 is common in both.The rest of the numbers( 2*2*3 )are multiplied with the the common 2 to get the L.C.M

L.C.M= 2*2*2*3= 24 minutes

So the next time they will leave together is 4:24 pm

Jeremy had $32.50 in his savings account. He withdrew $4.50 each week for 3 weeks. How much money did he have left in the account after the 3 withdrawals?

Answers

Answer:

Jeremy have 19 dollars left.

Step-by-step explanation:

He withdrew $4.50 3 times, so he withdrew $4.50x3 = $13.50 in total  

$32.50 — $13.50 = $19

Jeremy had 19 dollars left on his account.

can someone help ASAPPP PLEASE

Answers

I’m only good at fractions sorry honey
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