Please help

-

A company is making a steel reinforced concrete tunnel to prevent water from coming into the area. They are going to cover it with a protective coating.

They need to know the surface area of the tunnel to purchase the protective coating.

Calculate the surface area of the tunnel

Answers

Answer 1

The surface area of the cylinderical tunnel needed to purchase the protective coating is 452.16cm².

How to calculate the surface area?

Your information is incomplete. Therefore, an overview of the surface area of a cylindrical tunnel will be given.

Let's assume that the radius is 4cm and the height is 7cm. The surface area of the tunnel will be:

= πr²h + 2πr²

= (3.14 × 4² × 7) + (2 × 3.14 × 4²)

= 351.68cm + 100.48cm

= 452.16cm²

In conclusion, the surface area is 452.16cm².

Learn more about surface area on:

https://brainly.com/question/16519513


Related Questions

Jessica paid $25.50 for 3.4 pounds of shrimp. How much would it cost her to buy 8 pounds?

Answers

Answer: The answer would be $60

Step-by-step explanation: You would first wanna solve for how much one pound of shrimp costs, which is $7.5 (you divide 25.50 by 3.4) Then you would want to multiply 7.5 by 8 to get how much 8 pounds of shrimp costs.

if you drive 25 miles at a rate of 50 miles per hour. how long will this take?

Answers

Answer:

30 minutes

Step-by-step explanation:

50/25 =2 x 15 = 30

Which deal is better? Pizza A is 10-inch diameter for $15 or Pizza B is a 12-inch diameter for $27? Which do you get more pizza per dollar spent?​

Answers

Answer:

the answer is pizza b

Step-by-step explanation:

first i did 15 divided by 10=1.50

then i did 27 divided by 12=2.25

then i did 1.25%of 12=0.15

then 2.25 of 12=0.27

you get more pizza per dollar with pizza b

A number is chosen at random from the whole numbers
between 1 and 100, inclusive.
(a) What is the probability that the number ends in a zero?
(b) What is the probability that the number is odd?
(c) What is the probability that the number is odd or ends in
a zero?

Answers

Answer:

90 for the first oneoneoneone

Step-by-step explanation:

Determine what comes next in the given pattern.

15, 10, 14, 10, 13, 10,​

Answers

Answer:

→ 12..........

I hope this will help you....

Answer: 12, 10,

Step-by-step explanation:

What is the first step needed to solve
() -6=
IN
2
5
X-6= -16?
O a
Subtract 16 from both sides
Ob
Add 6 to both sides
Ос
Divide both sides by 5
O d
Multiply both sides by 2

Answers

hello there the answer would be add both sides by 6 hope this helps :)

6) Andy is going kyacking. He has $341 to spend on parking and paddles. Parking costs $30 and paddles cost $45.20 per person. Determine how many people can go kyacking

Answers

Answer:

6 people can go

Step-by-step explanation:

341-30=311

311-45.2x=0

45.2x=311

x=6.88

6.88 people can go but .88 of a person doesnt exist

how many bases does a rectangular pyramid have?​

Answers

Answer:

it has a 4 sided,1  base

Step-by-step explanation:

Answer:

One base, look at the image I uploaded;

(5, 3) and (5,-9) slope:
30 POINTS

Answers

the answer is unidentified


Please help me solve 5 and 4!

Answers

4. is A
5. i dunno sorry but 4 is A :)

Find the value of x. (It's an obtuse scalene triangle with two angles of 33° and 29°)

Answers

Answer:

118

Step-by-step explanation:

33+29 = 62

180 - 62 = 118

A line passes through the points
(4,3) and (9, -7).
What is the equation for the line in
slope-intercept form?

Answers

Answer:

y=-2x+7

enter the point into point slope form to find the slope and then use one of the points in point slope form  and rearrange it to have y by itself

What is the value of log Subscript 0. 5 Baseline 16? –4. 00 –0. 25 1. 51 2. 41.

Answers

The value of the logarithm expression [tex]log_{0.5}(16)[/tex] evaluated is given by : Option A: -4.00

What is logarithm and some of its useful properties?

When you raise a number with an exponent, there comes a result.

Lets say you get

[tex]a^b = c[/tex]

Then, you can write 'b' in terms of 'a' and 'c' using logarithm as follows

[tex]b = log_a(c)[/tex]

Some properties of logarithm are:

[tex]\log_a(b) = \log_a(c) \implies b = c\\\\\log_a(b) + \log_a(c) = \log_a(b \times c)\\\\\log_a(b) - \log_a(c) = \log_a(\frac{b}{c})\\\\\log_a(b^c) = c \times \log_a(b)\\\\\log_b(b) = 1\\\\\log_a(b) + log_b(c) = \log_a(c)\\[/tex]

Log with base e = 2.71828... is written as [tex]\ln(x)[/tex] simply.

Log with base 10 is written as [tex]\log(x)[/tex] simply.

For this case, we have to simplify the expression [tex]log_{0.5}(16)[/tex]

Let this is equal to 'a', then:

[tex]a = \log_{0.5}(16)\\\\0.5^a = 16\\(\dfrac{1}{2})^a = 16\\\\1^a/2^a = 2^4\\\\1 = 2^4 \times 2^a\\2^0 = 2^{4+a}\\\\0 = 4 + a\\a = -4[/tex]

(we used the property that: [tex]b^0 = 1[/tex] and [tex]k^m \times k^n = k^{m+n}[/tex] )

Thus, the value of the logarithm expression [tex]log_{0.5}(16)[/tex] evaluated is given by : Option A: -4.00

Learn more about logarithm here:

https://brainly.com/question/20835449

The numbers 20 through 30 were written on individual cards and placed in a bag. If you take one card from the bag, what is the probability that it will not have the digit 2 on it?

Answers

Answer:

1/10

Step-by-step explanation:

20 21 22 23 24 25 26 27 28 29 30

X.   X.   X.  X.  X.  X.  X.  X.  X.  X.  V

1/10

20-29 all have a 2 in it meaning 30 is the only digit that doesnt have a 2 so 1/10 numbers

If one card taken from the bag then the probability that will not have the digit 2 on it is 1/11.

What is probability ?

Probability shows possibility to happen an event, it defines that an event will occur or not. The probability varies from 0 to 1.

Given that,

Numbers from 20 to 30 are written on individual cards.

The total numbers of cards = 11

And numbers on cards = 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30

To find the probability of cards that have not the digit 2 on it.

Since, there is only one digit 30, which does not have digit 2,

Therefore, probability = favorable outcome / total outcome

= 1 / 11

The required probability of choosing a card that will not have the digit 2 on it is 1/11.

To know more about Probability on:

https://brainly.com/question/12478394

#SPJ2

ILL GIVE BRAINIEST TO WHOEVER IS CORRECT!! PLEASE HELP ASAP!! WITH WORK PLEASE!!!

Answers

Answer:

14,10

Step-by-step explanation:

8=(x+2)/2

16=x+2

x=14

4=(y-2)/2

8=y-2

y=10

Answer:

Step-by-step explanation:

A car dealer organizes the inventory of a specific model of car into a frequency table comparing the type of car and the model year. the dealer used the data from the frequency table to create this conditional relative frequency table by column. a 4-column table with 3 rows titled car inventory. the first column has no label with entries current model year, previous model year, total. the second column is labeled coupe with entries 0.9, 0.1, 1.0. the third column is labeled sedan with entries 0.75, 0.25, 1.0. the fourth column is labeled nearly equal 0.79 , nearly equal to 0.21, 1.0. which is the best description of the 0.1 in the table? given that a car is a coupe, there is a 10% chance it is from the previous model year. given that a car is from the previous model year, there is a 10% chance that it is a coupe. there is a 10% chance that the car is from the previous model year. there is a 10% chance that the car is a coupe.

Answers

A car is from the previous model year, there is a 10% chance that it is a coupe. Then the correct option is A.

What is probability?

Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1. Its basic meaning is something is likely to happen. It is the ratio of the favorable event to the total number of events.

A car dealer organizes the inventory of a specific model of a car into a frequency table comparing the type of car and the model year.

The dealer used the data from the frequency table to create this conditional relative frequency table by column.

A car is from the previous model year, there is a 10% chance that it is a coupe.

More about the probability link is given below.

https://brainly.com/question/795909

Answer:

A.) Given that a car is a coupe, there is a 10% chance it is from the previous model year.

Step-by-step explanation:

The person above me is correcttt~

edge2022

good luck! :)

~nxmbus

 The ratio of men to women working for a company is 8 to 5 if there are 135 woman working for the company what is the total number of employees

Answers

Answer:

351 employees

Step-by-step explanation:

5x27=135

8x27=216

135+216=351

What is the image of (x,y) after a translation of 3 units left and 7 units down?

Answers

Answer:

[tex](x + 3, y - 7)[/tex]

Step-by-step explanation:

Given

[tex]Function = (x,y)[/tex]

Translation:

[tex]Left = 3\ units[/tex]

[tex]Down = 7\ units[/tex]

Required

Determine the image of the function

Apply the first translation

[tex]Left = 3\ units[/tex]

When function (x,y) is 3 units translated left, we add the units to the x value.

The new function becomes:

[tex](x,y) -> (x + 3, y)[/tex]

Apply the second translation

[tex]Down = 7\ units[/tex]

We subtract 7 units from the y value

[tex](x,y) -> (x + 3, y)[/tex]

becomes:

[tex](x + 3, y) ->(x + 3, y - 7)[/tex]

Hence:

The image of the function is:

[tex](x + 3, y - 7)[/tex]

Need a quick help with the point lol

Answers

Answer: Point

Step-by-step explanation: Point

Answer:

its 14 because you divide the circumfrece and then pi

Step-by-step explanation:

can anyone help me with this one

Answers

Answer:

180+216= 396cm²

please mark brainliest♡♡

Step-by-step explanation:

First separate the shape into two rectangular

27 - 9= 18

18×10= 180cm²

9×24= 216c m²

Answer:

396 cm²

Step-by-step explanation:

Area = 10 x (27 - 9) + 24 x 9

= 10 x 18 + 24 x 9

= 20 x 9 + 24 x 9

= 44 x 9

= 396 cm²

Number 5 please I’m having trouble

Answers

Answer:

B

Step-by-step explanation:

you would just divide 37 from 8659

The scores of the students on a standardized test are normally distributed, with a mean of 500 and a standard deviation of 110. What is the probability that a randomly selected student has a score between 350 and 550? Use the portion of the standard normal table below to help answer the question. Z Probability 0. 00 0. 5000 0. 25 0. 5987 0. 35 0. 6368 0. 45 0. 6736 1. 00 0. 8413 1. 26 0. 8961 1. 35 0. 9115 1. 36 0. 9131 9% 24% 59% 91%.

Answers

The probability  of the students to be randomly selected between 350 and 550 will be 0.2395 or 24%

What will be the probability?

we know that the formula for probability is given by

[tex]Z=\dfrac{X-\mu }{\sigma}[/tex]

where,

Z = Z score,

X = raw score,

μ = mean,

σ = standard deviation,

The probability  of the students to be selected randomly between 350 and 550 will be given as

[tex]=P(350 < X < 550)[/tex]

[tex]=P(350-500 < X-500 < 550-500)[/tex]

[tex]=P(\dfrac{350-500}{110} < \dfrac{X-500}{110} < \dfrac{550-500}{110}[/tex]

[tex]=P(-1.36 < Z < 0.45)[/tex]

[tex]=P(Z-1.36)-P(Z-0.45)[/tex]

[tex]=(0.9131-0.6736)[/tex]

[tex]=0.2395[/tex]

Thus the probability of the students to be randomly selected between 350 and 550 will be 0.2395 or 24%

To learn more about probability follow

https://brainly.com/question/24756209

simplify 2 1/3 + 1 3/10 - 3 2/15



please help me quick i will mark you as brainliest and this question also gives 18 points

Answers

Answer:

7

Step-by-step explanation:

2 x 1/3 + 1 x 3/10 - 3 x 2/15

Multiplying each Side by the LCM which is 30

u will get 10 (2x1) + 3 (1x3) - 2 (3x2)

10(2) + 3(3) - 2(6)

20 + 9 -12

19 -12

7

Find the area of the circle with the diameter of 16

Answers

Answer:

64 [pi]

Step-by-step explanation:

pi r²=pi (8) 2=64 pi [use the symbol]

hope this helps! :)

Answer:

803.84

Step-by-step explanation:

A=3.14r^2

A=3.14x16^2

16x16=256

256x3.14=803.84

Hope this helps : )

Please evaluate this equation, and explain how you got the answer.

Answers

Answer:

3 = f

Step-by-step explanation:

3(6 - f) - 4 = 3f - 4

Distribute within Parenthesis

18 - 3f - 4 = 3f - 4

Combine like terms

14 - 3f = 3f - 4

Add 3f on both sides of the equation

14 = 6f - 4

Add 4 on both sides of the equation

18 = 6f

Divide by 6 on both sides of the equaiton to get your answer of

3 = f

Hope this helps :)

what are some ways to write 4 times x

Answers

Answer:

Some ways to write 4 times x are: 4x, 4*x

what is the perimeter of rectangle JKLM

Answers

Find lengths by reasoning shortcut

JK=6-1=5unitsJM=6-3=3units

Its a rectangle

Perimeter:-

2(JK+JM)=2(5+3)=2(8)=16units

Answer:

Perimeter = distance around a two-dimensional shape

⇒ Perimeter of a rectangle = (2 × width) + (2 × length)

From inspection of the diagram:

width = 3 unitslengths = 5 units

⇒ Perimeter of the rectangle = (2 × 3) + (2 × 5)

                                                 = 6 + 10

                                                 = 16 units

Can some one plz help me plz

Answers

1. 10 + 5x = 20

2. 5 + 10x = 20

3. 20 - 5x = 10

4. x/5 + 10 = 20

how do you subtract 8.43x^3 - 2.7x10^2

Answers

Answer:

Step-by-step explanation:

I tried this on a calculator but you could also do it on paper hope this helped!

35. Priscila's age is k years while Mary's age is byears. If Mary is 15 years older than b Priscila, which of the following stateinents is correct? 2k + b = 15 -K= 15 6 K-6= 15 D. 20+k=15 A. В.​

Answers

The relationship between Priscilla's and Mary's age illustrates algebraic expression

The correct representation of the statements is b - k = 15

How to determine the representation of their ages?

From the question, we have:

Priscilla = k

Mary = b

Mary = 15 years older

The third highlight above means that:

Mary = 15 + k

Substitute b for Mary

b = 15 + k

Subtract k from both sides

b - k = 15

Hence, the correct representation of the statements is b - k = 15

Read more about algebraic expression at:

https://brainly.com/question/2164351

Other Questions
3. Some historians claim that the Iroquois constitu- tion had an influence on the U.S. Constitution. Look briefly at the beginning of the U.S. Constitution on pages 8485 in your textbook and discuss some similarities and differences between the two constitutions. Divide 300 among Ravi and Isha in the ratio 2:3. The treasurer counted that there was $200 in the bank account he decided to use 1/2 of the money I need an answer for number 5 x < 1 is the solution to which of the following compound inequalities?a) x > 3 OR x < 1b) x < 4 OR x > 1c) x < 4 AND x < 1d) x > 3 AND x < 1 briefly explain the main constraints on effective policy evaluations identified by Anderson (1984: 139-143; see Study Unit 3 and the prescribed book sections 9.6 and 9.7 pp. 291-292). Then propose your own solutions to these constraints or problems Anita read 150 pages in 5 hours. What is her reading rate in pages per minute? According to Angela Duckworth, it takes __________ and ___________ to be gritty. Which is a common reason writers use summary? A. To convey background informationB. To show events as they happenC. To suggest actions in the presentD. To present realistic dialogue Can someone help me pleeeease Polllination refers to the ___________ When was the treaty of Paris signed Name the top portion of this bone A. sacrumB.coccyxC.manubriumD.sternum 7 Water undergoes changes in state becausetemperature affects the speed of its particles.Which of the following statements bestexplains why water changes into a gas whenheated? 5.3(A)A The lower the temperature, the slower thespeed of the particles.B Particles of liquids can move from place toplace.C The higher the temperature, the faster thespeed of the particles.D Water takes the shape of its container. In which system of government do the states have more power than the central government?A.) FederalB.) Confederate C.) Authoritarian D.) Unitary The chemical equation shown represents photosynthesis On April 1, 2017 the Reba Company purchased 10%, $800,000 bonds of the Trading Up Company at par plus accrued interest. These bonds were classified as an investment in trading securities. The bonds pay interest on June 30 and December 31 each year. The entry by Reba on April 1, 2017, would include a: _________ According to the map, where did the majority of the battles occur during World War I? what are the missing numbers? whats 2+2 its so hard