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
aev [14]
3 years ago
14

A game shop sells marbles in clear plastic cylinders. Four marbles fit across the diameter of the cylinder and 10 marbles fit fr

om the base to the top of the cylinder. Each marble has a diameter of 2 cm. What is the area of the plastic that is needed to make one cylinder?
Mathematics
1 answer:
slega [8]3 years ago
5 0
To start, you know that this question is asking for the surface area of one of the cylinders, and the formula to finding the surface area of a cylinder is A=2πrh+2<span>πr^2.

Now, to find the surface area, you first need to figure out the height of the plastic cylinder and its radius. 
Since you know that the diameter (twice the radius) of the cylinder is equivalent to 4 marbles, and each marble has a diameter of 2 cm, the diameter of the cylinder would be 8 cm. Then, to find its radius, you divide by 2, so its radius is 4.
Now, since you know that the height of the cylinder is 10 marbles, you multiply 10 by 2 to get that the height is 20 cm tall. 
Since you now have the values of the height and the radius, plug the values into the surface area of a cylinder formula (r is radius and h is height).
</span>A=2π(4)(20)+2π(4)^2.
<span>Assuming that pi is 3.14, when you simplify this using PEMDAS, you get 
502.4+100.48 which then simplifies to 602.88, the area of the plastic to make one cylinder.



</span>
You might be interested in
Give three Consecutive iintegers in descending order such that (-4) is the smallest​
BaLLatris [955]

Answer:

  • -2, -3, -4

Step-by-step explanation:

<u>Three consecutive integers in descending order are:</u>

  • -2 > -3 > -4
6 0
3 years ago
The volume of Saturn is about 8.27 x 10 cubic kilometers. The volume of Earth is about 1.09 x 102 cubic kilometers. The number o
ivann1987 [24]

Answer:

Option D: 7.59*10^{2}

Step-by-step explanation:

we know that

The volume of Saturn is about 8.27*10^{14}\ km^{3}

The volume of Earth is about 1.09*10^{12}\ km^{3}

Dividing Saturn's volume by Earth's volume

\frac{8.27*10^{14}}{1.09*10^{12}} =(\frac{8.27}{1.09})*10^{14-12} =7.59*10^{2}

4 0
3 years ago
Ten times the square of a non-zero number is equal to forty times the number
S_A_V [24]
To convey as an algebraic expression simply break down the statements and use any variable to represent the number in the sentence.

10 • x^2 = 40x
10x^2 = 40x
10x^2 - 40x = 0
10(x^2 - 4x) = 0
X(x - 4) = 0

X = 0

X - 4 = 0
X = 4.

Here are two possibilities of what the number can be, but because it is a nonzero number, I believe it would be 4.
7 0
4 years ago
1 7/11 divided 2 1/2 <br> Show work if you can :)
Dmitry_Shevchenko [17]
You can say 1 and 7/11 is 18/11 and 2 and 1/2 is 5/2 so : 
18/11 ÷ 5/2  so 18/11 * 2/5 = 36/55 = 0.654 :)))
i hope this is helpful 
have a nice day 
6 0
4 years ago
Read 2 more answers
21, Given: AC=FC, CB = CD<br> Prove:
neonofarm [45]

Answer:

in triangle ACD and BCE

AC = EC

angle ACD = angle ECB ( COMMON ANGLE).

CB = CD

BY side and side criteria

triangle ACD is congruent to triangle BCE

so angle a is congruent to angle E

hence, proved

5 0
2 years ago
Other questions:
  • PLZ HELPPPPP
    6·1 answer
  • There were 135 cars in a rally each driver paid a $25 fee to participate in the rally how much money did the drivers play in all
    6·1 answer
  • Which equation represents exponential decay?
    6·2 answers
  • PLEASE HELP QUICK!!!! m ∠ 2 is 60°. m ∠4 is half of m ∠2. What is m ∠3?
    8·2 answers
  • PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!
    14·2 answers
  • 3)
    8·2 answers
  • HELP ASAPPP
    8·2 answers
  • Please help me solve log3(2x+5)=3
    15·1 answer
  • Hi can you help with some ratio and proportion questions​
    5·1 answer
  • Find the value of x. Round to
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!