Mathematics College

Work out surface area of a cylinder

Work Out Surface Area Of A Cylinder

Answers

Answer 1

Answer:

1,246.584 cm squared

Step-by-step explanation:

Answer 2

Answer:

42477.2

Step-by-step explanation:

radius times height times 2 times pi

times that by

radius times radius times 2 times pi

diameter=8

radius=4

4 times 16.8=67.2

times by 2 =134.4 times pi=422.23

now do 4 times 4 times 2 times pi=

110.53 times 422.23=42477.2

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Related Questions

help plz answer the question plzzz

Answers

are you okay dude?
stay safe :)

Cell Phone Company A has a cell phone plan with 4 phones for $65. The additional cost for data is 20 for 2GB, $30 for 4GB, and $40 for 6GB. Cell Phone Company B charges $60 for 4 cell phones and $10 for every GB up to 4GB, and then $20 for each GB thereafter. The Johnsons use 100 minutes a month with an unlimited talk and text plan. The Smiths use 250 texts with an unlimited talk and text plan. If the Smiths need 4 phones and want 4 GB, what is the better price from the cell phone company to contract with?

Answers

I think the answer is 21

It took Sam 324 minutes to cook an 18 pound turkey. How many minutes per pound did it take to cook the turkey?

Answers

Answer:

18 minutes per lb

Step-by-step explanation:

324 divided by 18 = 18

Mr. Smith had 3/4 of a peach pie leftover. He split the leftover pie among his 3 co-workers.

What fraction of the pie did each co-worker receive?

Answers

Answer:

I believe it would 1/4 each

Step-by-step explanation:

Please solve and show your work

k/3 + 4=10

Answers

K/3 + 4 = 10
K/3 = 10 - 4
K/3 = 6
K = 6x3
K = 18

Answer:

k=18

Step-by-step explanation:

k/3+4=10

subtract 4 from both sides.

k/3+(4-4)=10-4

k/3=6

multiply 3 on both sides.

k/(3/3)=6*3

k=18

Check using substitution method.

(18)/3+4=10

Use order of operations to solve. (PEMDAS)

6+4=10

10=10

Hope this helps. Have a nice day you amazing bean child.

Jace has to read 40 pages in his novel tonight. He has only read 8 pages so far. What percent of the pages has he read?

Answers

Answer:

The answer is 20 because 8 goes into 40 5 times as does 20 to 100.

Step-by-step explanation:

Answer:

20%

Step-by-step explanation:

I need help ASAP!! If you can't see the screenshot press on the image.

Answers

Answer:

Part A:  y = 4.5x + 22

Part B:  31 inches

Step-by-step explanation:

Part A:

the y-intercept appear to be at 22

the slope can be found by using the points (0, 22) and (4, 39)

m = 39 - 22

        4 - 0

m = 17 / 4 = 4.3 and this is close to 4.5

Part B:

plug in 2 for 'x' in the equation: y = 4.5x + 22

y = 4.5(2) + 22

y = 9 + 22

y = 31

PLEASE HELP ITS DUE TODAY

Answers

Answer:

Its either answer B. or D. Sorry if I'm wrong and I hope this sorta helps.

I need help with 2,4 and 6 I attached a image below

Answers

Answer:

Step-by-step explanation:

2. 8n= -2

n= -1/4

4. -8s= 32

s= -4

6. 1/7b= -7

b= -49

at a summer camp the campers are divided into groups. each group of 16 campers requires 2 cabins. how many cabins are needed for 112 campers? (please show your work)​

Answers

Answer:

14 cabins

Step-by-step explanation:

16 ÷ 2 = 8 in 1 cabin

112 ÷ 8 = 14 cabins

Please consider marking brainliest :)

Hope this helps

Have a great day!!

help dont get this !!!

Answers

Answer: X less than of equal to 11/2

Explanation:

HELP WITH NUMBER ONE PLEASE!! (FACTORING)

Show me how you did it please!!!

Answers

use photomath! i think it’ll help

someone pls help me!!!!

Answers

Answer:

C.

Step-by-step explanation:

1 X 26 = 26

2 X 26 = 52

3 X 26 = 78

how is tat algebra???

What’s the value of this question

Answers

The answers is 70 degrees
Yes the answer should be 70°
Hope this helps

Help please I’ll give you love :)

Answers

T and u are 63 and f is 134

The Perimeter of a rectangle the garden is 43.8 feet it’s length is 12.4 feet what is it width

Answers

12.4 + 12.4 = 24.8


43.8- 24.8 = 19

19/2 = 9.5


I think that is right hope I helped!!

Answer: 9.5 feet

Step-by-step explanation: First, add 12.4 + 12.4. This equals 24.8. Next subtract 43.8 - 24.8. This equals 19. Finally, solve 19 divided 2 because it is a rectangle and a rectangle has two sides of the same length/width. 19 divided by 2 is 9.5 feet. I hope this helps!

Rose Milan agrees to make equal payments at the beginning of each year for 15 years to discharge a debt of 240,000, due now. If money is worth 12% compounded annually, find the annual

Answers

The answer is sex becuz sex is always the answer

Will give brainliest

Answers

Answer:b

Step-by-step explanation:

Answer:

b -2/3

Step-by-step explanation:

rise/run

you find two points that intersect a line then do rise over run the slope is negative

Is (2, 2) a solution of y < 4x – 6?
Choose 1 answer:
А
Yes
(В
No

Answers

A yes because it’s right and I got it right

Answer:

No.

Step-by-step explanation:

I hope I helped. <3

-2/3 divided by 1/3
10 points for the answer PLZ hurry

Answers

Answer:

-2

Step-by-step explanation:

bc math

Answer:

-2

Step-by-step explanation:

[tex]=\frac{-2}{3} \times\frac{3}{1}[/tex]

[tex]=\frac{-2 \times3}{3\times1}[/tex]

[tex]=\frac{-6}{3}[/tex]

[tex]=\frac{-6 divided by 3}{3dividedby3}[/tex] or = -6÷3/3÷3

[tex]=-2[/tex]

Prove that A (-2,3), B(8,2), C(4,5) are the vertices of a right triangle

Pls help 10 points!!

Answers

9514 1404 393

Answer:

  you cannot prove what isn't so

Step-by-step explanation:

The given vertices are not those of a right triangle.

the summer sports training camp has a maximum capacity of 250 student (s). if 85 have pre registered, then how many students can still participate?

Answers

Answer: x [tex]\leq[/tex] 165

Step-by-step explanation:

.The point at which the x- and y-axis intersect on the coordinate plane.
​

Answers

Answer:

(0,0)

Step-by-step explanation:

The video got 4,640 views in its second week. what was the percent increase in the views from the first week?

Answers

Answer:

4408

Step-by-step explanation:

If the number decreased by 5%, then the result is 95 percent of the second week. To find 95 percent of the second week, we multiply 4640 by .95

This gets us 4408

Answer:

4408

Asked Googl

⚠️Answer needed quickly⚠️
*Brainliest to right answer*

Answers

Answer:

The rate of change is 7

Step-by-step explanation:

multiply x by 7 to get the y value

y=−12x+ GRAPH PLEASE HELP OR BRIANLIEST GET RIGHT

Answers

Answer:

(0,0) (1,-12)

:)

If ON = 9x - 8, LM = 8x + 4, NM = x - 8, and OL = 3y - 5, find the values of x and y for which LMNO must be a parallelogram.​

Answers

Answer:

x is 12 and y is 3

Step-by-step explanation:

Given a parallelogram LMNO,

LM = ON and OL = NM

Given;

ON = 9x - 8

LM = 8x + 4

NM = x - 8, and

OL = 3y - 5

Substitute into the expression

LM = ON

8x + 4 = 9x - 8

8x - 9x  = -8 - 4

-x  = -12

x = 12

Also OL = NM

3y - 5 = x - 8

3y - 5 = 12-8

3y - 5 = 4

3y = 4+5

3y = 9

y = 9/3

y = 3

Hence the value of x is 12 and y is 3

Two triangles are similar. The smaller triangle has side lengths 10, 20, and 15 units. The larger triangle's longest side is 52 units. What is the perimeter of the larger triangle? first o answer get brainliest

Answers

Answer:

117

Step-by-step explanation:

So basically, how I figured it out is 20-15 is 1/4 of 20. So I had to find the 1/4 of 52 which is 13.  But 15 is 3/4 of 20 so then you multiply 13 times 3 which is 39.

10 is half of 20. So you find half of 52. Which is 26.

52+39+26 is your equation.

Which adds up to 117. So 117 is your answer

I used 20 because in the smaller triangle 20 was the largest side like 52 in the biggest triangle.

Brainliest would be appreciated

First answer

Have a great day!

- 2(x + 3) = 10
Please help

Answers

-2x - 6 = 10

-2x = 16

-x = 8

x = -8

what is the slope between the points ( 3,5) and (-2,-4) ?

Answers

Answer:

slope = 9/5

Step-by-step explanation:

as the formula of slope is

slope.= y2-y1/x2-x1

as we know that in the question x1 = 3 , y1 = 5 and x2 = -2 , y2 = -4

put these values in the formula of slope then we get the slope which is equal to (9/5)

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