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
Anna007 [38]
4 years ago
13

A necklace contains twenty-four spherical beads of silver, each having a radius of 0.5cm. The beads are to be coated, and the co

st of coating is $10 per cm2. What is the approximate total cost, to the nearest cent, for coating the beads?
Mathematics
1 answer:
Inessa [10]4 years ago
4 0

Answer:

$153

Step-by-step explanation:

To find the total cost, we have to calculate the area of one bead, then all of them:

Area of one bead = pi x r^2 = 3.14 x 0.5^2 = 3.14 x 0.25 = 0.765cm^2

Area of 20 beads = 0.765 x 20 = 15.3cm^2

Now, we are able to calculate the ultimate cost of coating:

If the cost is $10 per cm^2, then we have to find how much it costs to coat 15.3 cm^2.

15.3 x 10 = $153.

Hope this helps

You might be interested in
In a zoo there are 21 Lions.<br> 1/3<br> of them are male. How many females are in the zoo?
Jet001 [13]
Answer: 14 female
Explanation:
21/3= 7 male
21-7=14 female
hope it helps!
5 0
3 years ago
Read 2 more answers
HURRY INVERSE OF A FUCTION​
Anon25 [30]
Here is how we get the answer....
First, replace f(x) with y . ...
Replace every x with a y and replace every y with an x .
Solve the equation from Step 2 for y . ...
Replace y with f−1(x) f − 1 ( x ) . ...
Verify your work by checking that (f∘f−1)(x)=x ( f ∘ f − 1 ) ( x ) = x and (f−1∘f)(x)=x ( f − 1 ∘ f ) ( x ) = x are both true.
6 0
3 years ago
Hurry I need help pls hurry.
Sav [38]

Answer:

55

Step-by-step explanation:

8 0
2 years ago
How do we display and<br> summarize data<br> distributions?
photoshop1234 [79]

Answer:

A good display will help to summarize a distribution by reporting the center, spread, and shape for that variable. ... In these plots the horizontal axis represents the values of the variable and the height of the bar represents how many observations are equal to the particular value.

Step-by-step explanation:

6 0
3 years ago
What is a quick way to determine which savings account will pay the most interest?
Igoryamba
I would say, the best way and the fastest way, is to go to some banks and ask them how much interests they give you... then the bank that gives you the most interest, the bank that you are looking for. 
6 0
3 years ago
Read 2 more answers
Other questions:
  • Find the indicated function values for the function below<br> g(x)=9x + 8<br> g(0) =
    14·1 answer
  • Is this correct????????????
    9·2 answers
  • What is the slope of the line ?
    13·2 answers
  • Which property would allow you to use mental computation to simplify the problem 27 + 15 + 3 + 5? additive identity additive inv
    15·2 answers
  • I’ll give extra points pls help
    13·2 answers
  • Miguel deposits $2000 into a bank account that earns simple interest. He writes the expression 2000 + 2000(0.015)(t/12) to repre
    8·1 answer
  • I don't know how to do this!!​
    10·1 answer
  • Can someone help me find the area
    10·2 answers
  • Where does the square root of 40 go on a 1-10 number line?​
    5·1 answer
  • if -9 is added to a number and the sum is doubled, the result is 11 less than the number. Find the number
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!