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
storchak [24]
3 years ago
14

Ernie is making a cylinder-shaped container to store his pens. The container has a base on one end and an opening on the other e

nd. He is going to spray paint the outside of the container. The container has a diameter of 3 inches and a height of 18 inches.
Mathematics
1 answer:
dalvyx [7]3 years ago
8 0
For this case we must calculate the surface area of the container to know the amount of paint that Ernie must use.
 We have then:
 A = pi * r ^ 2 + 2 * pi * r * h
 Where,
 r: cylinder radius
 h: cylinder height
 Substituting values:
 A = 3.14 * (3/2) ^ 2 + 2 * 3.14 * (3/2) * 18
 A = 176.625 in ^ 2
 Answer:
 
The amount of paint needed is:
 
A = 176.625 in ^ 2
You might be interested in
First blank
katrin2010 [14]

Answer:

first blank- technological skills

second blank- vision

Step-by-step explanation:

4 0
3 years ago
100 points + brainiest
Scrat [10]

Answer:

  • 35 grams of 11.43% solution

Step-by-step explanation:

The end solution has same volume as initial volumes of mixture.

  • 10 + 25 = 35 g

The concentration of solution is calculated as below

  • 10*0.15 + 25*0.1 = 4 g
  • 4 / 35*100% = 11.43% (rounded)

6 0
2 years ago
Tony made 14 L of lemonade for a party. His guests drank 9,500mL, start of the lemonade.
andreev551 [17]

4,500 mL should/will be the right answer

8 0
3 years ago
Read 2 more answers
Help me plsss i need to do it fast 12 min left help me pls
Simora [160]

Answer:

$44

Step-by-step explanation:

She has 79 AFTER her grandfather gave her 35. So you would subtract 35 from the 75 and get $44

7 0
2 years ago
Read 2 more answers
Find domain and range -√x-5+10
inysia [295]
When finding the domain of a square root, you have to know that it is impossible to get the square root of 0 or any negative number. since domain is possible x values this means that x cannot be 0 or any number less than 0. However, you can find the square root of the smallest most infinitely small number greater than 0. since an infinitely small number close to zero can not be written out, we must must say that the domain starts at 0 exclusive. exclusive is represented by an open or close parenthesis so in this case the domain starts with:
(0,
we can get the square root of any number larger than 0 up to infinity but infinity can never be reached so it is also exclusive. So so the ending of our domain would be:
,infinity)
So the answer if the square root is only over the x the answer is
(0, infinity)

But if the square root is over the x- 5 then this would brIng a smaller amount of possible x values. since anything under the square root sign has to be greater than 0, you can say that:
(x - 5) > 0
x > 5
Therefore the domain would start at 5 and the answer would be:
(5, infinity)
8 0
3 years ago
Other questions:
  • Adison earned 25$ mowing her neighbors lawn.then she loaned her friend 18$,and got 50$ from her grandmother for her birthday. sh
    13·2 answers
  • State what kind of variation you have, then solve the problem. A 15-person road crew is scheduled to finish repairing a highway
    14·1 answer
  • Help for Number 2 ?????
    8·1 answer
  • A taxi cab charges $0.45 per mile in addition to a $2.75 flat rate fee. Susie has $15 to spend on a taxi cab ride. The taxi driv
    9·1 answer
  • Subtract -7a^2+3a-9−7a
    14·1 answer
  • Using the graph below, what is the unit rate?
    9·1 answer
  • WHAT DID HE DO WRONG <br> 333/1,000 = 0.333 =0.3
    15·2 answers
  • Cars are either​ race-car fast, slightly​ fast, or normal. It turns out that ​10% of all cars are​ race-car fast, ​40% are sligh
    8·1 answer
  • Like for like ? follow for follow ?
    10·1 answer
  • If you were to solve the following system of equations by using a matrix,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!