1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
bekas [8.4K]
3 years ago
9

Surface area of cylinders

Mathematics
1 answer:
Nitella [24]3 years ago
6 0

Answer:

SA = 402.14 square inches

Step-by-step explanation:

Imagine you unroll the cylinder. You will be left with a rectangle and two "lids" (disks).

The rectangular area will be of dimension:

Ar = (height)*(circumference of the disk)

Ar = (12 in) * (8 in) *pi = 301.60 in^2

The area of one disk will be

Ad = pi*(radius^2) = pi*(4^2 in^2) = 50.27 in^2

So the total surface area will be

SA = Ar + 2* Ad = 402.14 in^2 (square inches)

You might be interested in
A triangle has the coordinates
kotegsom [21]

Answer:

Go on Mathify! It’s a free website that could help you with ur math homework and it’s a chat

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
How do I know when a dog is pregnant
chubhunter [2.5K]
PHYSICAL changes.
In the final third (weeks 6-9) of pregnancy, the dog’s belly becomes rounded and distended. Her mammary glands start to develop and become more obviously swollen, as they get ready to produce milk.
Behavioral changes.
APPETITE changes.
Towards the end of pregnancy, the dog’s will womb grow larger and take up more space in her belly. She won't be able to accommodate large meals, so she'll start wanting to snack, eating a little at a time more frequently.
NESTING
Watch for nesting. When it is nearly time for her to deliver the pups, the dog may start to nest. [3] She will gather blankets or clothing in a secluded place as she prepares a suitable safe warm environment for her imminent new arrivals.
The exact timing of nesting varies from 2-3 weeks to 2 - 3 days prior to giving birth.
4 0
3 years ago
Which of the following terms correctly describe the object below?
Ratling [72]
The correct answers are A, D, E
5 0
3 years ago
13x + 4 + 10x - 1 = 141​
Anna007 [38]

Answer:

x=6

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Factor completely 81x2 − 100. (1 point) (10x − 9)(10x − 9) (10x − 9)(10x + 9) (9x − 10)(9x + 10) (9x − 10)(9x − 10)
MArishka [77]

The complete factorization of the equation 81x² - 100 is; (9x - 10)(9x + 10)

<h3>How to factorize quadratic equations?</h3>

We are given the quadratic equation;

81x² - 100

Now, according to quadratic identities, we know that;

(a + b) * (a - b) = a² - b²

Now, our equation can also be expressed as;

81x² - 100 = 9²x² - 10²

Thus, applying the quadratic identity gives us;

(9x + 10)(9x - 10)

Read more about factorization of quadratic equations at; brainly.com/question/1214333

#SPJ1

5 0
2 years ago
Other questions:
  • Good Morning everyone! I need help please! :) First gets Brainliest
    9·1 answer
  • Classify the triangle. above and Check all that apply A. isosceles B. obtuse C. scalene D. right E. acute F. equilateral​
    9·1 answer
  • An ice cream store charges 75 cents for each scoop of ice cream and 25 cents for each cone. How many scoops would be in one ice
    7·2 answers
  • What is the measure of angle A to the nearest degree?
    11·1 answer
  • Solve the simultaneous equations.<br>3x-y=1, 2x + 5y = 41​
    5·1 answer
  • A room in the shape of a triangle has sides of length 7 yd, 8 yd, and 11 yd. If carpeting costs $17.50 a square yard and padding
    6·2 answers
  • What is the process for finding the answer to:<br> 0.2x - 1 = -1?
    7·2 answers
  • Select the correct answer.
    7·1 answer
  • 2 + 2 is ????????????????????
    11·1 answer
  • Manuel bought 2kg of jelly beans and 2kg of gummy worms for a total of $26. Danny bought 2kg of jelly beans and 3kg of gummy wor
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!