Determine the surface area of a cylinder if the diameter is 2 inches and the height is 21 inches. Round your answer to the nearest hundredth. (Use )

Answers

Answer 1

Answer:

heya! ^^

given ,

★ diameter of cylinder = 2 inches

[tex]\therefore \: radius = \frac{2}{2} = 1 \: inch \\ [/tex]

★ height of cylinder = 21 inches

______________________________________

[tex]surface \: area \: of \: cylinder = 2\pi \: r(r + h) \\ \\ \dashrightarrow \: 2 \times 3.14 \times 1(1 + 21) \\ \\ \dashrightarrow \: 2 \times 3.14 \times 22 \\ \\ \dashrightarrow \: 3.14 \times 44 \\ \\ \dashrightarrow \: 138.16 \: inches {}^{2} [/tex]

hope helpful :D


Related Questions

Answer correctly for brainliest pleaseeee!!

Answers

Answer:

A. (x,y) → (-x,y)

Step-by-step explanation:

A: (-5,-1)
A': (5,1)
B: (-3, -3)
B': (3, -3)
C: (-5, -5)

C': (5, -5)
D: (-7, -3)

D': (7,-3)

The x values change sign but the y values don't.

A (x,y) - (-x,y) is the answer

please help asap. please.

Answers





For the table

10 —> 4
1 —> 0.4
20 —> 8
40 —> 16
39 —> 15.6
10% of 40 is is 4, because you would use the equation 10/100 = x/40. You would cross multiply and get 4/40 = 10/100.

1% of 40 is the equation 1/100 = x/40, so 0.40 is the value of x.

Hope this helps, you should be able to solve the rest by cross multiplying.

1. This shelter, providing food to the needy is an example of:
a) redistribution of resources
b) the free market economy
C) third party consequences
d) all of the above​

Answers

Answer:

A

Step-by-step explanation:

It is redistributing food.

The answer is A redistribution of resources

jake buys a new car that costs $15,000 he borrowed from the bank with 3.5% compound interest per year. If it takes 7 years to pay off the loan, how much will he have paid for the car?

Answers

Answer:

NVM MY ANSWER IS WRONG ITS INTEREST NVM SRRY

Step-by-step explanation:

you can solve this by doing I=PRT

I=Interest (total which is

P= Principle ($15,000)

R= Rate (3.5% which turns to 0.35 bc you turn it into a decimal)

T= Time (7 years)  

Once they are identified you mulitply them together:

(15,000)(0.35)(7)=36,750

I am sure that's the answer I'm sorry if I am wrong but I did this at the beginning of the year and got a 100% on my test so it should be correct! :)

4x+70=9x-5 solve need serious help

Answers

Answer:

X=15

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

x = 15

Step-by-step explanation:

4x+70=9x-5

-4x       -4x

______________

70 = 5x - 5

+5           +5

______________

75 = 5x

/5     /5  

_____________

15 = x

Hope this helps :)

(If you need this explained in words let me know)

Find the perimeter and area of the shaded figure below.

Answers

perimiter 10
area 6
Perimeter - 10 units
Area - 6

Explanation: Perimeter: 2 + 3 + 2 + 3 = 10
Area: 2*3 = 6

Please help me!!! Due tonight thank you, you will make my day so much!!!

Answers

Answer:

The area increases by 25.68 [tex]cm^2[/tex]

Step-by-step explanation:

The surface area of a cuboid is 2lw + 2wh + 2lh, where l = length, w = width, and h = height. The current surface area is 2*18*3.4 + 2*3.4*30 + 2*18*30, which is 1406.4. If the height is increased by 0.6 cm, the surface area will be 2*18*3.4+2*3.4*30.6+2*18*30.6, which is 1432.08. The difference is surface area is 25.68 [tex]cm^2[/tex]

Answer:

The area increases by 25.68

Step-by-step explanation:

please help < 3 8thgrade math
whats the solution

Answers

Answer:

This drawing should help a lot, and the way you solve the last one is you divide both sides by 2x making it an equation you can use to solve the graph.

Step-by-step explanation:

remember, y=mx+b, m is the slope because the x is the ever increasing variable of the slope, and b is where you start the line on the y axis, so it makes this much easier knowing that the slope for a whole number, is just putting a 1 underneath it, and it applies to every number even negatives too.

At the airport, there is a moving walkaway 500 meters long, which moves at a speed of 4 km/hour. Aditya and Ravi step on the walkaway at the same time. Aditya walks at a speed of 6 km/hour on the walkaway, while Ravi stands still. When Aditya comes to the end of the walkaway, how far is he ahead of Ravi.​

Answers

Answer:

He is approximately 166.6 m ahead of Ravi.

If it's right please mark BRAINLIEST

Answer:

ans is 260 meter

Step-by-step explanation:

A penny is about 1/16th of an inch thick. The distance from the moon to the earth is about 239,000 miles. What is the exact number of pennies needed to be in a stack in order to reach the moon?

Answers

Answer:

15,143,040,000 (fifteen trillion one hundrend fourty-three billion fourty thousand

Step-by-step explanation:

for every mile their are 63360 inches.

63360*239,000=15143040000

Frankie is making a flag for his boat in the shape of a triangle. He needs the flag to cover at least 56 square inches. Which measurements will create a flag that is large enough?

base of 10 in and height of 12 in

base of 4 in and height of 28 in

base of 14 in and height of 8 in

base of 20 in and height of 5 in

base of 4 in and height of 14 in

Answers

Answer:

4x14

Step-by-step explanation:

It is correct because 4x14 is 56.

Answer:

4x14

Step-by-step explanation:4x14=56

HELP ME PLEASE SOMEONE !!

Answers

Answer:

the last graph

Step-by-step explanation:

from what I can read of the question, it is asking for a decreasing pattern. If it is as the input increases, the only graph with the output decreasing is the last as it has a negative slope and is thus inversely related.

1 and 3 are positive slopes, and 2 does not have a trend line.

20 POINTS) Linda has to buy stickers, erasers, and a pencil. She can only spend $3. A sticker costs $0.35, an eraser costs $0.99, and a pencil costs $0.59. Can Linda buy 3 stickers and 2 erasers?

[Use the inequality 0.35x + 0.99y + 0.59 ≤ 3]

Yes, because the total will be $1.62
Yes, because the total will be $2.93
No, because the total will be $3.62
No, because the total will be $5.93

Answers

Answer:

No, because the total will be $3.62

Step-by-step explanation:

When we substitute with 3 and 2 shown below

0.35(3)+0.99(2)+0.59 we get 3.62, which is greater than 3 dollars.

Hope this helped<33

Answer:

Alright so the question states that "She can only spend $3."

A sticker costs $0.35

A eraser is $0.99

A pencil costs $0.59

What you are trying to find is Can Linda buy 3 stickers and 2 erasers.

So add the total value of stickers prices. You need to know what's the cost of 3 stickers and 2 erasers

0.35+0.35+0.35= 1.05+0.99+0.99 = 3.03 So she can't. Now can she buy 1 sticker, 1 eraser, and 1 pencil. So is it enough to get 1 of each item?

0.35+0.99+0.59=1.93 Yeah you can.

But is it enough for her to get 3 stickers, 2 erasers and a pencil?

We already know the cost for 3 stickers and 2 erasers is $3.03. All you need to do is add $0.59 to find the total cost. The total cost of 3 stickers and 2 erasers and a pencil is $3.62. So the answer is No, because the total will be $3.62 and her budget is $3 so she will need extra $0.62 to cover the full cost.

Hope this helps

Paul ate 7/9 of 1/6 of his birthday cake. Did Paul eat more or less than 7/9 of the cake? Did he eat more or less than 1/6 of the cake? Explain your answer WITHOUT finding the exact product in the space below.

Answers

Answer:

See below ↓↓

Step-by-step explanation:

He ate less than 7/9 of the cakeHe ate less than 1/6 of the cake

To understand, I'll explain in simple words.

First look at the part where it says 1/6 of his birthday cakeThat means he can only eat less than or equal to 1/6 of the cake7/9 > 1/6, so it's definitely less than 7/9Now, it says he ate 7/9 of that 1/6 slice of the cakeThe 1/6 slice can be represented as a whole (9/9) and he only ate 7 parts of that small fractionTherefore, he ate less than 1/6 of the cakeI hope it's clear and feel free to ask if you're still confused

Write each number in scientific notation.

Answers

A. 1.47 x 10^4
B. 8.3 x 10^-4
C. 7.6 x 10^8
D.3.8 x 10^-2
E. 3.8 x 10^-1
F. 3.8 x 10^0
G. 3.8 x 10^12
H. 9 x 10^-10
Answer:
A: 1.47 x 10^4
B: 8.3 x 10^-4
C: 7.6 x 10^8
D. 3.8 x 10^-2
E: 3.8 x 10^-1
F: 3.8 x 10^0
G: 3.8 x 10^12
H: 9 x 10^-10

Comment if correct!

Rule 1: Subtract 4 starting from 20. Rule 2: Subtract 3 starting from 20.

Answers

Answer:

Sequence 1: 20, 16, 12, 8, 4, 0

Sequence 2: 20, 17, 14, 11, 8, 5

Ordered pairs: (20, 20) (16, 17) (12, 14) (8, 11) (4, 8) (0, 5)

Step-by-step explanation:

Debbie is sewing pillowcases to sell at the craft fair.She has a bolt of fabric that is 15 years long.Each pillowcase requires 8/9 yard of material.If she makes as many pillowcases as possible,how many yards of fabric will she have left?

Answers

Around 2 proximently but it depends if your teacher wants the aproximate extimate or the exect Awser


Hope this help :) sorry if it did not I need to go to bed

Which of the following lists is in order from smallest to largest?
2/11, 1/5, 17%, 0.175

2/11, 17%, 0.175, 1/5

1/5, 2/11, 0.175, 17%

17%, 0.175, 2/11, 1/5

Answers

Answer:

I believe the answer is d. 17%, 0.175, 2/11, 1/5

Step-by-step explanation:

if you convet them all to decimels it comes out to:

17%= .17

.175= .175

2/11= .18

1/5= .2

Answer:

c

Step-by-step explanation:

if you change them to decimals yo get the answer

Please multiply and add the question shown down below.
Then Pick: A, B, C, or D.

Answers

Answer:

1/7 + 2/7 * 1/4 = 3/14, therefore your answer is, B.

Step-by-step explanation:

I added 1/7 and 2/7 then multiplied it by 1/4 and got 3/14!

Answer:

B

Step-by-step explanation:

1/7 + 2/7 x 1/4

Bodmas

1/7 + 2/7 x 1/4

1/7 + 1/7 x 1/2

1/7 + 1/14

LCM = 14

2 + 1 3

--------- = -------

14 14

pls help me thank you

Answers

3 * 4.5 is how to solve it I think for the

help i’ll give you brainlist or whatever it’s called

Answers

(5,2) and (0,2)

you really want to think of a function as a vending machine. if you selected B12 on a vending machine and got chips, the only thing that you should be getting is chips. B12 represents x, the input value, and the chips represent y, the output value. one input value can only have one output value. in this scenario, we can say that (5,2) is a function because we don’t have another 5 as an input value.
(0,2) is not an example of an input output value because we already have 0 as an input which would make it have two output values which is not possible. if you pressed B12 and got a drink even though you just got chips from it, that would not be a function.

Negative decimals on a number line 4

Answers

Answer:

b

Step-by-step explanation:

its closest to -.9 so it has to be that one

The answer is b due to the fact

Answer ASAP! but only if you know 100%, and whoever gets it right can have brainliest
beinggreat78, please confirm or answer this question

Answers

hey there! to find the area of a circle all you need is the radius!

the formula is: A = π r²
by plugging in the value(s) we were given, 28.274 is your final answer.

Mr. Adams asked two random groups of 20 students each how many minutes they spent playing video games last night. The interquartile range (IQR) for Group A was 30 minutes and the IQR for Group B was 45 minutes. What can you conclude about the data Mr. Adams collected?

A: The maximum is greater for Group B than for Group A.

B: The data for Group B is more spread out than the data for Group A.

C: The maximum is greater for Group A than for Group B.

D:The data for Group A is more spread out than the data for Group B.

Answers

Answer:

I think its  

Step-by-step explanation:

I think its a because the IQR is the third quartile minus the first quartile (third-first=IQR)(the first is the middle number between the minimum and median and the third quartile is the middle number between the median and the maximum)so anyway it just makes sense that the answer would be B

I think the answer is option B

Please find the rest of the answers, 1 was already done for you. IMAGE ATTACHED

Answers

Answer:

D

Step-by-step explanation:

I think if wrong im sorrrry

Answer:

the answer i got is d

Step-by-step explanation:

Please help me find the surface area.

Answers

Answer:

cool sooo coolll very nice drawing

Answer:

the anwer is 500

Step-by-step explanation:

hope this helps

Kyle designs and conducts a computer simulation with 25 trials and uses the data to create the relative frequency bar graph shown. The graph shows the relative frequency of the number of rolls needed for a number cube in order to roll all of the odd numbers.

According to the results of the simulation, what is the experimental probability that 6 or fewer rolls are needed to roll all of the odd numbers? Express your answer as a percent.

Answers

[tex]\large{\mathcal{QUESTION:}}[/tex]

Kyle designs and conducts a computer simulation with 25 trials and uses the data to create the relative frequency bar graph shown. The graph shows the relative frequency of the number of rolls needed for a number cube in order to roll all of the odd numbers.

[tex]\large{\mathcal{ANSWER:}}[/tex]

hope its help the answer is the photo

HELPPPP IT DOWN BELLOW

Answers

Answer:

paul put it at 3,8 and its supposed to be at 0,6

Step-by-step explanation:

(1,6) he went over left to far

20pts and brainliest to the person who has the correct answer​

Answers

Um I think its 143 i think  im just guessing

50 POINTS! GIVING BRAINLIEST!

Answers

Here are the solutions. I hope this helps.

Answer:

1)  a = 16.38 (nearest hundredth)

   b = 11.47 (nearest hundredth)

2)  b = 14.14 (nearest hundredth)

    c = 15.36 (nearest hundredth)

Step-by-step explanation:

Sine Rule

[tex]\sf \dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}[/tex]

(where A, B and C are the angles and a, b and c are the sides opposite the angles)

Question 1

The interior angles of a triangle sum to 180°

⇒ m∠B = 180° - 90° - 55° = 35°

Given:

A = 55°B = 35°C = 90°c = 20

[tex]\implies \sf \dfrac{a}{\sin 55}=\dfrac{b}{\sin 35}=\dfrac{20}{\sin 90}[/tex]

[tex]\implies \sf a=\dfrac{20\sin 55}{\sin 90}=16.38304089...[/tex]

[tex]\implies \sf b=\dfrac{20\sin 35}{\sin 90}=11.47152873...[/tex]

Question 2

The interior angles of a triangle sum to 180°

⇒ m∠B = 180° - 90° - 23° = 67°

Given:

A = 23°B = 67°C = 90°a = 6

[tex]\implies \sf \dfrac{6}{\sin 23}=\dfrac{b}{\sin 67}=\dfrac{c}{\sin 90}[/tex]

[tex]\implies \sf b=\dfrac{6\sin 67}{\sin 23}=14.13511419...[/tex]

[tex]\implies \sf c=\dfrac{6\sin 90}{\sin 23}=15.35582799...[/tex]

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