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
Can anyone help thanks
Soloha48 [4]

Answer:

x = 8, -4

Step-by-step explanation:

2x-4-6=6; therefore, x = 8

2x-4=-12; therefore, x = -4

5 0
3 years ago
If a/b=5/3, then 3a=
Komok [63]

Answer:

3a=5b

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Your car insurance comes due annually and generally costs about $1,500. You decide that you would like to set aside a monthly am
Volgvan

Answer:

$125

Step-by-step explanation:

Since there are 12 months in a year, divide the total bill by the total number of months.

1500/12 = $125

5 0
3 years ago
A bag contains 5 red marbles, 6 blue marbles and 9 yellow marbles.
lilavasa [31]

Answer:

Step-by-step explanation:

The total number of marbles is 20

Question A

P(Red) = 4/20 = 1/5

P(yellow) = 9/20

P(Red then Yellow) = 1/5 * 9/20 = 9 / 100

Question B

P(B) = 6/20

P(B again) = 5/19 because you  have 1 less total plus 1 less blue.

P(B and B) = 6/20 * 5/19

P(B and B) = 30/ 380 = 3/38

7 0
3 years ago
Who can answer this??
Juliette [100K]
The answer is B.

Since it’s a negative x, the line should go down from left to right and cross the origin.
7 0
3 years ago
Other questions:
  • Round 9 over 16 to 0 1/2 or 1
    12·2 answers
  • Solve the absolute value inequality|2x+3|≥|x−7|
    13·1 answer
  • A class has 4 boys and 10 girls what is the ratio in the simplest form that compares numbet boys to total number of students
    13·2 answers
  • 1/4 divide by 5/8 i really need to know for homework
    9·1 answer
  • HELP QUICK!<br> Which of the following inequalities does the graph represent?
    10·2 answers
  • FABRIC Jordan wants to measure a length of fabric, but the only tape measure she has is damaged. The first number on her tape me
    9·1 answer
  • HELP! abcdefghijklmnopqrstuvwxyz
    7·2 answers
  • Help me please!!!!!!!! free brainliest.
    9·2 answers
  • Giving brainlist for answering this question. Please be quick I am falling behind this question thanks.
    15·2 answers
  • Please answer asap!!! i need help w these
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!