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
Alenkinab [10]
2 years ago
14

PLEASE ANSWER ASAP I WILL GIVE 15 POINTS TO FIRST ANDWER​

Mathematics
2 answers:
Sedbober [7]2 years ago
8 0
400 hope this helps
katrin2010 [14]2 years ago
5 0

Answer:400

Step-by-step explanation:

You might be interested in
Somebody please help! Marked Brainliest!
olga nikolaevna [1]

Answer:

Part A:

The surface area of a cylinder is given by

A=  6πr² if h= 2r

Part B:

Total Cost of covering the cylinder = Rate *2πrh + rate*2πr²

Cost of covering only the side = Rate *2πrh

Step-by-step explanation:

Part A:

The surface area of a cylinder is given by

A= 2πrh + 2πr²

Where h= height and radius = r

But we have the height twice as radius so h= 2r

So putting h= 2r we get

A= 2πr(2r) + 2πr²

A= 4πr² + 2πr²= 2πr²(2+1) = 2πr²(3)= 6πr²

Part B:

Cost = Rate * area of the wall + rate * area of the top and bottom

Cost = Rate *2πrh + rate*2πr²

Where area of the top and bottom= πr² +πr² =2 πr²

and area of the side = 2πrh

Multiplying both with the rate and then adding would give the total cost of materials needed to cover the outside of the cylinder and from top and bottom as well.

If  you do not need to cover top and bottom then the expression would be

Cost of covering only the side = Rate *2πrh

Part C:

Already done above.

4 0
3 years ago
Kelly bought a new car for $20,000. The car depreciates at a rate of 10% per year. Write an equation to model the car's value.
Anna71 [15]

y=20,000-.10x

with x being the number of years

3 0
3 years ago
Read 2 more answers
Convert the following percent to a decimal: 56 percent.
mihalych1998 [28]

Answer:

0.56

Step-by-step explanation:

Percent means 'per 100'. So 56% means 56 per 100 or simply 56/100. If you divide 56 by 100, you'll get 0.56.

56/100 = 0.56

5 0
2 years ago
The graph below shows the cost of pens based on the number of pens in a pack. What would be the cost of one pen? A graph is show
Pepsi [2]
The answer is 1.75 dollars for one

Please Give Me Brainliest Answer :D
8 0
3 years ago
Read 2 more answers
In the zoo, there are 12 elephants, 8 giraffes, 9 lions, 10 seals, and 16 otters.
xenn [34]

Answer:

16/55

Step-by-step explanation:

If you add all the animals together then put it in fraction form you have 16/55

7 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me answer #2 and #3 with the process <br><br> Thank you it’s very much appreciated ! :)
    12·1 answer
  • Factor the trinomial below 24x^2-49x-40​
    5·1 answer
  • SOMEONE PLEASE HELP WITH THESE QUESTIONS!! I don’t mind which one(s) you do I just need as much help as I can get thank you !!
    5·1 answer
  • Bullco blends silicon and nitrogen to produce two types of fertilizers. Fertilizer 1 must be at least 40% nitrogen and sells for
    6·1 answer
  • If tan x = , and 0 &lt; x &lt;<br> , what is cos(x – 3x)?
    5·1 answer
  • Solve the inequality, show your work, and graph is on the number line
    5·1 answer
  • Help please 100 points
    5·2 answers
  • Please help<br>and please explain the answers to weather its linear or nonlinear?<br>​
    12·1 answer
  • 5, 2, -1, -4, ____, ____, ____,...
    12·1 answer
  • Consider the inequality.<br> What is the solution to inequality
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!