The picture shows 3 steel rods. The rods are congruent, solid cylinders. The area of the top of the one rod is 7.07 square centimeters. The area of the body of one rod is 39.58 square centimeters. Find the total surface area of the 3 rods.
a) 53.72
b) 46.65
c) 139.95
d) 161.16​

The Picture Shows 3 Steel Rods. The Rods Are Congruent, Solid Cylinders. The Area Of The Top Of The One

Answers

Answer 1

Answer: D, 161.16 square centimeters.

Step-by-step explanation:

The surface area of a cylinder (shape of each steel rod) is given by this formula:

[tex]A = 2\pi rh + 2\pi r^2[/tex], where the first 2*pi*r*h measures the area of the curved surface while the second 2*pi*r^2 measures the area of the two circles on the top and bottom.

We are given the area of the top of one rod, which is 7.07 square centimeters.

We are also given the area of the body of one rod, which is 39.58 square centimeters.

The top of one rod is the shape of a circle, and we know there are two circles on both sides of a cylinder, so the surface area of both circular sides are 7.07.

The total surface area of a cylinder is the body plus both circular ends, so the surface area for this cylinder is:

39.58 + 7.07 + 7.07 = 53.72

There are three cylinders, so multiply this value by three to get the answer, 161.16 square centimeters.


Related Questions

please answer HURRY PLEASE (have to have it done before 12:00

Answers

Answer:

Hello, It isn't clear.

It looks blur to me

Answer:

7. C

8. A

To find slope, we need two points. Once we have them, we can put them into the formula:

[tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]      ← this is rise/run

For 7, it's just a matter of comparing any two consecutive points.

For 8, you are given the two points.

A pilot planning to fly at 420 miles per hour flies against a wind which cuts the speed to 4/5 of the planned speed. How long
will it take the plane to travel 840 miles?

Answers

Answer:

2.5 hours

Step-by-step explanation:

420x4/5=336

840/336=2.5

Answer

2.5 hours

Step-by-step explanation:

4/5 of 420 is 336 mph

840 ÷ 336 = 2.5 hours

Deposit $125 in your checking account ​

Answers

Answer:

??

Step-by-step explanation:

Answer:

You are adding $125 into your checking account.

Step-by-step explanation:

You have an ant farm with 25 ants. The population of ants in your farm will double every 3 months. The table shows the population growth of the ants over nine months. Decide whether the table represents a linear function or a nonlinear function. After one​ year, how many ants will there be in the ant​ farm

Answers

Answer:

Linear - 400 Ants

Step-by-step explanation:

0 Months - 25 Ants

3 Months - 50 Ants

6 Months - 100 Ants

9 Months - 200 Ants

12 Months - 400 Ants

Hope this helps! <3

Identify whether the two graphs would form paraffeſ finesperpendicular lines, or neither parallel nor perpendicular lines.

Answers

Answer:

neither

Step-by-step explanation:

the slope of the first seems to be 1/5 while the second looks to be 2/5

I need this ASAP!
Evaluate: (-10) + 30 ÷ 5 x 2(-7 +5)
Will give Brainliest!

Answers

Answer:

-34

Step-by-step explanation:

question attached as photo​

Answers

Answer:

2) [tex]\frac{1}{\sqrt[6]m^{5}}[/tex]

Step-by-step explanation:

As per the laws of indices:

[tex]\frac{x^{a} }{x^{b} } = x^{a - b} \\\\and \\ \\(x^{a})^b = x^{ab}[/tex]

Therefore:

2-(1/3) = 5/3

So m ^(5/3)

5/3 multiplied by -1/2 = -5/6

so m^(-5/6)

Another law of indices:

[tex]x^{\frac{a}{y} } = \sqrt[y]{x^{a} }[/tex]     and when there is something raised to a negative fraction do the reciprocal.

Carolyn has 20 biscuits in a tin.
She has
12 plain biscuits
5 chocolate biscuits
3 ginger biscuits
Carolyn takes at random two biscuits from the tin.
Work out the probability that the two biscuits were not the same type.

4 Marks​

Answers

Answer:

Approximately 58.4%

Step-by-step explanation:

The probability that they are different is the opposite of the probability that they are the same.

The probability that they are the same is:

P(plain, plain) = (12/20) (11/19) = 132 / 380

P(chocolate, chocolate) = (5/20) (4/19) = 20 / 380

P(currant, currant) = (3/20) (2/19) = 6 / 380

P(same) = 132/380 + 20/380 + 6/380

P(same) = 158/380

P(same) = 79/190

Therefore, the probability that they are different is:

P(different) = 1 − 79/

[tex]\frac{111}{190}[/tex]  is the  probability that the two biscuits were of not the same type.

What is Probability?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.

According to question, Carolyn has 20 biscuits in a tin.

She has 12 plain biscuits, 5 chocolate biscuits and 3 ginger biscuits

Carolyn takes at random two biscuits from the tin.

We have to find out  the probability that the two biscuits were of  not the same type.

             P(plain biscuit, plain biscuit)  [tex]=(\frac{12}{20} )(\frac{11}{19} )=\frac{132}{380}[/tex]

P(chocolate biscuit, chocolate biscuit)[tex]=(\frac{5}{20})(\frac{4}{19} )=\frac{20}{380}[/tex]

          P(ginger biscuit, ginger biscuit)[tex]=(\frac{3}{20}) (\frac{2}{19})=\frac{6}{380}[/tex]

Probability of same type of biscuits

[tex]=\frac{132}{380} +\frac{20}{380}+\frac{6}{380}[/tex]

[tex]=\frac{79}{190}[/tex]

The probability that the two biscuits were not of the same type.

[tex]=1-\frac{79}{190}[/tex]

[tex]=\frac{111}{190}[/tex]

Hence, we can conclude that [tex]\frac{111}{190}[/tex]  is the  probability that the two biscuits were not of the same type.

Learn more about probability here:

https://brainly.com/question/11234923?referrer=searchResults

#SPJ2

What is this answer?

Answers

Answer:

qljffIWN.LWJHABF,NCUKGKQW,DN

Step-by-step explanation:

;F.wrkfhuawlfmslfihbsfjvnsdcjhkugcv sd

Answer:

You don't have an answer up there, so I don't know what I'm supposed to answer for you

A company sells three types of gift bags, which include movie passes,x, microwave popcorn,y, and DVD,z, the basic basket has two movie passes and one pacage of microwave popcorn, and cost $15.50. The medium basket has 2 movie passes, 2 microwave popcorn and one DVD and costs 37.00 the super basket has four movie passes, three microwave popcorn, and two DVD and costs 72.50

Answers

Answer:

true

Step-by-step explanation:

is it true or false

Lin read 44 pages in 132 minutes. Diego read 35 pages in 140 minutes. Who is reading at a faster rate, Lin or Diego? Show and Explain your reasoning.

Answers

Answer:

Diego

Step-by-step explanation:

divide 132 minutes by 44 pages and you get 3 pages per minute, then divide 140 minutes by 35 pages and you will get 4 pages per minute. so Diego reads 1 more page a minute than lin. hope i helped you :)

Carl is building a fish tank for his fish. Carl wants the fish tank to be a cube. He knows his fish need 144 cubic inches of water to swim in. What is the length of the side on the aquarium that Juan will build?

Answers

Answer:

you need to multiply something

A directed segment QR¯¯¯¯¯ with endpoints at Q (2, 1) and R (8, 13) is partitioned from Q to R into a 1:2 ratio at point Z. What are the coordinates of Z?


(2, 4)


(4, 5)


(6, 9)


(9, 10)

Answers

Answer:

The coordinate of the point Z is (4, 5)

Step-by-step explanation:

The given information are;

The coordinates of the endpoints of the directed segment QR are Q(2, 1) and R(8, 13)

The ratio of the partition of the directed line segment QR from Q to R = 1:2

The location of the point at the directed line segment is partitioned = Point Z

Therefore, we have;

The proportion of the partition segment QZ to QR is given as follows;

QZ = 1/(1 + 2) × QR  = 1/3·QR

ZR = 2/(1 + 2) × QR  = 2/3·QR

Which gives the coordinate of the point Z as follows;

The coordinate of the point Z = (2 + (8 - 2)×1/3, 1 + (13 - 1)×1/3)

The coordinate of the point Z = (2 + 2, 1 + 4) = (4, 5)

The coordinate of the point Z = (4, 5).

Aman, Anna and Tina are participating in the school race. Anna completes a lap in 120 minutes, Aman completes a lap in 240 minutes and Tina completes a lap in 60 minutes. If they all started at the same time, then after how long will they meet again?

Answers

Given:

Anna completes a lap in 120 minutes.

Aman completes a lap in 240 minutes

Tina completes a lap in 60 minutes.

To find:

The time after which they will meet again.

Solution:

They all started at the same time. So, the time after which they will meet again is the LCM of time taken by them to complete a lap.

Required time = LCM(120,240,60)

Factors of [tex]120 = 2\times 2\times 2\times 3\times 5[/tex]

Factors of [tex]240=2\times 2\times 2\times 2\times 3\times 5[/tex]

Factors of [tex]60=2\times 2\times 3\times 5[/tex]

So,

[tex]LCM(120,240,60)=2\times 2\times 2\times 2\times 3\times 5[/tex]

[tex]LCM(120,240,60)=240[/tex]

Therefore, after 240 minutes they will meet again.

At 7 AM it is 20° F and the temperature is dropping at a rate of 4° F per hour. What will the temperature be at
11 AM?

Answers

Answer:

4 degrees farenheight

Step-by-step explanation:

Answer:

4 degrees

Step-by-step explanation:

7am to 11am is 4 hours.

So now multiply 4 hours*4* F = 16

So the temperature decreased 16 degrees.

20-16=4

It was 4 degrees at 11 am.

Find the x - and y-intercepts of the graph of the linear equation 3x + 6y = 24.​

Answers

Answer: x=8 y=4

Step-by-step explanation:

Why is 3^-2 not a negative number?

Answers

The rule you use is x^(-k) = 1/(x^k)

In this case x = 3 and k = 2, so,

3^(-2) = 1/(3^2) = 1/9

--------------------------------------------

One way to think of it, is to consider the equation below

3^2*3^x = 1

We can solve for x like this

3^2*3^x = 1

3^(2+x) = 1

3^(2+x) = 3^0

2+x = 0 .... the bases are equal, so the exponents must be equal

x = -2

meaning that

3^2*3^x = 1

updates to

3^2*3^(-2) = 1

Now isolate the 3^(-2)

3^2*3^(-2) = 1

3^(-2) = 1/(3^2)

3^(-2) = 1/9

Let the function f be defined by f(x) = 12-5x

What value of a will make the equation f(a) = 6 true?


6/5


-18


-13


5/6

Answers

Answer:

6/5

Step-by-step explanation:

given that f(a) = 6

using x = a

f(x) = 12-5x

f(a) = 12 - 5a

since f(a) = 6

6 = 12 - 5 a

6 - 12 = 12 - 5a - 12

= -6 = -5a

= -6/-5 = -5a/-5

= a = 6/5

value of a is 6/5

PLEASE HELP!! (I'LL GIVE BRAINLY!)

Answers

Answer:

x inntercept is 2

Step-by-step explanation:

what is the value of 3b2−b when b = 5?

Answers

Ok so it’s using distributive property

3(5)2-5
5*3=15
5*2=10

You add that 25
Minus the last b Which would make it 20
:)

write the equation of the line fully simplified slope-intercept form.

Answers

Answer:

y=-1/2x-8

Step-by-step explanation:

The slope is -1/2 and the y-intercept is -8.

Help! Again..
The sales tax in your city is 8.8%, and an item costs 63 BEFORE tax.
How much tax would you pay on that item?

Answers

Answer:

$5.54

Step-by-step explanation:

8.8% of $63 = 0.088 * $63 = $5.544

Answer: $5.54

Answer:

You would pay $5.54 tax for that item.

Step-by-step explanation:

0.088 x 63 = 5.54

Help needed ASAP will give you BRAINLIEST and 5 stars RATE

Answers

Answer:

Illustration (A)

Step-by-step explanation:

An Illustration a book or newspaper or something else that gives a brief explanation on a topic which helps us understand. Like a print feature, I could draw and make a article on a Print feature.

7. Melissa bought 8 yards of string to make bracelets. She wants to cut the string in equal pieces that is 1/2 yard
long. How many pieces of strings with Melissa have?
A 4
B 16
C 40
D 50
Please answer this it’s for a test and I suck in math I don’t even know how I’m in pre ap

Answers

Step-by-step explanation: To find this answer, you want to divide the amount of yards in half.  This is the case since each string is 1/2. So as a result, each yard of whole string will produce 2 strings.  To find your final answer, multiply 2 strings by 8 yards.  

A team of painters is painting all the homes in a new neighborhood. So far, they have painted
3
4
of a house in 4 days. At what rate are they painting?

Answers

Answer:

3/16

Step-by-step explanation:

You are making picnic baskets.The list shows the items you are putting into the baskets.You want identical groups of items in each basket with no items left over.What is the greatest number of picnic baskets you can make?

Answers

Answer:

apples

Step-by-step explanation:

Answer:

you will have 8 baskets

because if you look at all the number you will see that they have one number in common which is eight. then you will need to find the division partner which would be:

4 sanwiches,5 granola bars,and 6 apples in one picnic basket. doing that you will get eight basket in total.

How many liters are in 1 dekaliter?

Answers

Answer:

10

Step-by-step explanation:

Just took the test

The equation below represents a situation.

13 – 14x = 38x

Which word problem could the equation represent?

A.) A jar contains 13 dollars worth of one kind of coin. Clara took 14 coins out of the jar. Now, there are 38 coins remaining. What is the value of one of the coins in the jar?

B.) A box contains 38 muffins. Nate sells 14 muffins and makes 13 dollars. How much did Nate charge per muffin?

C.) Over 13 days, Gretchen withdrew 14 dollars from her bank account and deposited 38 dollars. On average, how much money did she deposit each day?

D.) Matthew has 38 pages to read in his textbook, but 14 of the pages are ripped out. It took him 13 minutes to read the pages. How long did he spend on each page?

Answers

Answer:

it is C

Step-by-step explanation:

Maybe

I am not really good at math

Consider the function f(x) = 9x^2- 3x + 3

Determine the output produced by the input value x = 3.

Output: F(3) =

Answers

Answer:

6x3(067)m

Step-by-step explanation:

uhm do the math

Mr. Perez ordered 12 new jerseys for the middle school baseball team . Each jersey costs the same amount. He paid \$|O for shipping and the total cost of the order was $190. How much was the price of each jersey ?

Answers

Answer:

each jersey was 15 dollars.

Step-by-step explanation:

190-10= 180

180/12= 15

hope this helps!!

Answer:

15

Step-by-step explanation:

Take the 10 away because it was for shipping. Do 180 divided by 12 and you get 15

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